12-Letter Words Containing: Y,O,H
(In Any Order)
There are 1,091 12 letter words,
180 12 letter phrases and
0 12 letter abbr's with
Y,O,H in.
Best Scoring for Word Games
| Word | Save | Length | Usage | Points | Type | ||
|---|---|---|---|---|---|---|---|
| hydroxyzines | 12 | 38 | nounn | ||||
noun • a drug (trade names Atarax and Vistaril) used as a tranquilizer to treat anxiety and motion sickness | |||||||
| zygapophyses | 12 | 35 | nounn | ||||
Valid word for Scrabble US
| |||||||
| zygapophysis | 12 | 35 | nounn | ||||
Valid word for Scrabble US
| |||||||
| hypothesized | 12 | 33 | verbv | ||||
verb • to believe especially on uncertain or tentative grounds | |||||||
| thymectomize | 12 | 33 | verbv | ||||
Valid word for Scrabble US
| |||||||
| hydrolyzable | 12 | 33 | adjectiveadj | ||||
adjective • capable of undergoing hydrolysis | |||||||
| phagocytized | 12 | 33 | verb, adjectivev, adj | ||||
verb • To ingest (something) by phagocytosis. | |||||||
| hypercomplex | 12 | 33 | noun, adjectiven, adj | ||||
Valid word for Scrabble US
| |||||||
| homozygously | 12 | 33 | |||||
Valid word for Scrabble US
| |||||||
| homozygosity | 12 | 33 | nounn | ||||
noun • the state of being homozygous; having two identical alleles of the same gene | |||||||
| or scroll down to see all results... | |||||||
Tip: Scrabble EU allows far more words than US! Also change the max length to see more words. | |||||||
All 12 Letter Words
Words (1091)
- psychologist
- chemotherapy
- hypocritical
- choreography
- synchronized
- hypothetical
- historically
- bloodthirsty
- anthropology
- mythological
- psychopathic
- formaldehyde
- horizontally
- asphyxiation
- biochemistry
- biosynthesis
- nymphomaniac
- hypertension
- hydrothermal
- hypothalamus
- hysterectomy
- posthypnotic
- aromatherapy
- hieroglyphic
- incoherently
- theophylline
- astrophysics
- hypochlorite
- philanthropy
- hydrochloric
- otherworldly
- pyrotechnics
- pharmacology
- harmoniously
- psychobabble
- methodically
- psychotropic
- synchronised
- praiseworthy
- thoughtfully
- phenomenally
- youthfulness
- hypnotherapy
- hypochondria
- prophylactic
- oceanography
- carbohydrate
- thoracostomy
- policyholder
- phylogenetic
- psychosocial
- forthrightly
- thunderously
- chrestomathy
- psychoactive
- hypoglycemic
- cryptography
- radiotherapy
- physiologist
- posthumously
- polyurethane
- psychosexual
- hypothesized
- hypertrophic
- nonchalantly
- bibliography
- archeopteryx
- erythematous
- hyperthyroid
- mealymouthed
- behaviorally
- phonetically
- hydrogenated
- horrifically
- dishonorably
- geophysicist
- psychometric
- hypoglycemia
- hypogonadism
- hydrographic
- horrendously
- asynchronous
- mythologized
- hypnotically
- hydrofluoric
- hyponatremia
- stylographic
- lycanthropic
- hypnotisable
- physiognomic
- photodynamic
- hydrodynamic
- lymphomatoid
- oophorectomy
- hydroplaning
- rehypnotized
- dysmenorrhea
- perionychium
- psychologize
- rheumatology
- polygraphist
- hypocalcemia
- thrombolysis
- biophysicist
- hydrological
- hydrotherapy
- tracheostomy
- polyethylene
- polymorphous
- hypothalamic
- horrifyingly
- synchronizer
- rhetorically
- harmonically
- solzhenitsyn
- erythromycin
- autohypnosis
- phytophagous
- stonyhearted
- hydrocephaly
- cardiography
- lymphography
- hebdomadally
- propoxyphene
- phenotypical
- holidaymaker
- tracheophyte
- chivalrously
- coquettishly
- creditworthy
- hepatomegaly
- heterocyclic
- tyrothricins
- thymectomize
- phagocytosed
- heterodyning
- lachrymosity
- phagocytoses
- phagocytotic
- hypothecated
- hygrophilous
- biosynthetic
- holistically
- blithesomely
- oropharynges
- hypothesizes
- psychrometer
- heterokaryon
- achlorhydria
- thyrotropins
- thrombocytes
- thrombocytic
- geohydrology
- honeysuckles
- hypnotizable
- unorthodoxly
- noteworthily
- euphonically
- podophyllins
- euphoniously
- photocopying
- honorability
- physiocratic
- methylations
- chlorophylls
- parathyroids
- xanthophylls
- euphorically
- polychroming
- lymphomatous
- hypodermises
- monkeyshines
- phytochromes
- inhospitably
- psychographs
- hydrolyzable
- nonhemolytic
- lyophilising
- lyophilizers
- seismography
- lyophilizing
- heterotrophy
- psychologise
- diaphanously
- polytechnics
- sycophantism
- chronography
- mycophagists
- hydrospheric
- pyrocatechol
- fathomlessly
- fluorography
- apophyllites
- hyperbolical
- photolyzable
- cryptographs
- hyperbolized
- hyperbolizes
- soothsayings
- hydrotropism
- chrysoberyls
- epiphytotics
- typographers
- polygraphers
- typographies
- mythologists
- cartoonishly
- mythologizes
- porphyropsin
- outlandishly
- chrysophytes
- hydroxylases
- cholerically
- biogeography
- nympholeptic
- gametophytes
- polyhedroses
- hypercorrect
- synarthrosis
- hydroxyzines
- phycological
- worshipfully
- annihilatory
- hydrocracked
- chlorenchyma
- zoogeography
- synchronical
- openhandedly
- cytochemical
- synchronises
- autohypnoses
- autohypnotic
- synchronizes
- phagocytosis
- hydrogenases
- zygapophyses
- xylographies
- xylographing
- phagocytized
- phagocytizes
- hypotensives
- lachrymosely
- myrmecophile
- softheadedly
- phenocrystic
- unnewsworthy
- zygomorphies
- cathodically
- hymenopteran
- hymenopteron
- hobbledehoys
- hypothecates
- hydrographer
- heterogamety
- pyrotechnist
- hypothecator
- phyllotactic
- pyromorphite
- catholically
- phytochemist
- phyllotaxies
- honeycombing
- hypothenuses
- phytohormone
- hypothermias
- hemodialysis
- heteroploidy
- stereography
- yellowhammer
- xylophonists
- hydrologists
- pyrophyllite
- hemodynamics
- hematoxylins
- hydrolysates
- viceroyships
- polyalcohols
- oropharynxes
- vichyssoises
- photobiology
- thyrotrophic
- polyanthuses
- antiphonally
- honeymooners
- achlorhydric
- honeymooning
- actinomorphy
- hydrolyzates
- polyphenolic
- yellowthroat
- scyphistomae
- scyphistomas
- heterozygote
- thoracically
- dehydrations
- heterozygous
- honeycreeper
- methoxychlor
- hydromancies
- photosystems
- polyphyletic
- polymorphism
- pteridophyte
- phanerophyte
- hypoxanthine
- cyclothymias
- chlorohydrin
- conchoidally
- hydromedusae
- unhydrolyzed
- podophyllums
- wordsmithery
- hypocalcemic
- hydrometeors
- carbohydrase
- hydrocolloid
- heterophylly
- spheroidally
- mesophyllous
- octahedrally
- protohistory
- paratyphoids
- hydromorphic
- dermatophyte
- onychophoran
- lymphoblasts
- microphysics
- hypotonicity
- hydronically
- kymographies
- physiologies
- thallophytic
- apocryphally
- polychromies
- chalcopyrite
- chromaticity
- hyperostoses
- hyperostosis
- hyperostotic
- hydropathies
- schoolboyish
- chemosurgery
- hypocoristic
- geothermally
- polyrhythmic
- inchoatively
- bronchoscopy
- hypocycloids
- whortleberry
- psychodramas
- synchroneity
- dichotically
- lexicography
- phytoalexins
- hydrophobias
- cyanohydrins
- phycomycetes
- hypodiploidy
- polycythemic
- hyoscyamines
- rehydrations
- sphygmograph
- hydrokinetic
- polystichous
- cherrystones
- geochemistry
- photogeology
- rehypnotizes
- countermyths
- biosyntheses
- monophyletic
- bryophyllums
- synchroscope
- neoorthodoxy
- symposiarchs
- asynchronism
- hypoglossals
- orthogonally
- hydroquinone
- hellaciously
- hyperreactor
- psychologies
- sycophancies
- chylomicrons
- psychologism
- hypokalemias
- sycophantish
- hemodialyses
- phreatophyte
- attorneyship
- polytheistic
- asynchronies
- hydrospheres
- unhandsomely
- chymotrypsin
- phonemically
- chymotryptic
- thyrotrophin
- hyperarousal
- phytosterols
- homonymously
- copyrighting
- thermography
- handypersons
- erythroblast
- hydrostatics
- collenchymas
- horseplayers
- erythorbates
- eurythermous
- merrythought
- mythographer
- orchestrally
- cycadophytes
- hyperbolists
- bodychecking
- chatoyancies
- nonphysician
- hyperboloids
- boyishnesses
- hyperboreans
- isothermally
- chrysarobins
- epiphytology
- pathobiology
- xerophytisms
- erythrocytes
- homopolymers
- erythrocytic
- typographing
- thiocyanates
- embryophytes
- polygraphing
- mythologizer
- chrysomelids
- cryptorchids
- borohydrides
- lysolecithin
- exothermally
- phosphatidyl
- psychrometry
- chrysoprases
- mythomaniacs
- cephalometry
- homosexually
- cryptorchism
- hydroxylated
- hydrobiology
- hydroxylates
- forehandedly
- gametophytic
- polyhedrosis
- hydrocarbons
- hypercomplex
- erythrosines
- myelopathies
- nymphomanias
- isochronally
- synarthroses
- polyhistoric
- hydroxyureas
- thallophytes
- phycocyanins
- marshmallowy
- phycologists
- phlebography
- ichthyofauna
- nephelometry
- hydrocracker
- cytochalasin
- nonpsychotic
- amphibiously
- microcephaly
- hyphenations
- synchronisms
- gymnosophist
- tryptophanes
- hypostatized
- hypostatizes
- shadowgraphy
- homozygously
- polycythemia
- thrombolytic
- prothonotary
- archdeaconry
- stichomythia
- synchrotrons
- hydrogenates
- stichomythic
- photopolymer
- zygapophysis
- polarography
- phylloclades
- amphictyonic
- physiography
- ichthyosaurs
- heterocycles
- cyclohexanes
- xylographers
- anthocyanins
- ethnohistory
- homozygosity
- thymectomies
- hypotensions
- lachrymators
- myographical
- hypnogeneses
- exhilaratory
- hypnogenetic
- hypoesthesia
- myrmecophyte
- pyrosulphate
- hygrometries
- myographists
- odontography
- phylloplanes
- ethoxyethane
- sclerophylls
- zygomorphism
- sclerophylly
- prosenchymas
- hyperidroses
- moneychanger
- monohydrated
- hydrogeology
- monohydrates
- fourteenthly
- lachrymation
- psilanthropy
- monohydrogen
- phyllosphere
- pyrotechnies
- hypnoidising
- lamprophyres
- lachrymatory
- unneighborly
- lamprophyric
- dyotheletism
- christophany
- heteromyidae
- honeybunches
- blastochyles
- phalloplasty
- hypnoidizing
- hypognathous
- whoremongery
- hobbyhorsing
- microhylidae
- hypnological
- goldsmithery
- athrocytoses
- athrocytosis
- trionychidae
- charophyceae
- hypnologists
- hypothesised
- hemodialyzer
- phylogeneses
- hypothesiser
- pericynthion
- chlorpyrifos
- helicoidally
- hydrolysable
- hypothesises
- hypnopaedias
- lycanthropes
- gymnosophies
- phytonadione
- hypothesists
- rhyacotriton
- staphylomata
- hypothesizer
- elixophyllin
- phytophilous
- phytophthora
- ichthyolatry
- heterography
- honeymonthed
- heterogynous
- polyhidrosis
- melancholily
- glossy-haired
- pyrrhuloxias
- hypothetised
- achlamydeous
- nonrhoticity
- phytotherapy
- hypothetises
- hepaticology
- polypharmacy
- prophesyings
- honey-colored
- thaumatogeny
- hypothetized
- rhynchoelaps
- anthropogeny
- unfathomably
- hypothetizes
- chromatology
- ichthyostega
- rhyncostylis
- lychnoscopes
- honey-scented
- honeysuckers
- soreheadedly
- thaumatology
- homocysteine
- honeysuckled
- horneophyton
- arthrography
- gigantomachy
- hylomorphism
- anthropogony
- psychagogues
- hypothyroids
- hylopathisms
- thrombolyses
- arthroplasty
- polyphonists
- hylopathists
- hypotrochoid
- woolly-haired
- pythonomorph
- hydromancers
- woolly-headed
- hydrobatidae
- nonsynthetic
- cachinnatory
- rhynchocoels
- surveyorship
- cladorhyncus
- pteridophyta
- heliotherapy
- polyphyllous
- rhynchophore
- cyclothymiac
- polyphyodont
- heteromorphy
- phototherapy
- rhytidectomy
- oxycephalies
- cyclothymics
- oxycephalous
- smotheringly
- homoeomorphy
- unhydrolysed
- whisperously
- zoopathology
- heteronymous
- hydromedusan
- orchidectomy
- hydromedusas
- self-hypnosis
- zymotechnics
- polychaetous
- lymphadenoma
- dehypnotised
- hypsochromes
- dehypnotises
- hydrochoerus
- synecdochism
- hypsochromic
- gastrophryne
- hypsographic
- chlorophytum
- chylifactory
- dehypnotized
- hydrocortone
- lymphangioma
- dehypnotizes
- brachychiton
- hectocotylus
- hydrometries
- coenenchymas
- anthropotomy
- cynocephalus
- hymenophores
- methylphenol
- hydrodamalis
- twenty-fourth
- heteroplasty
- hypochlorous
- hypsometries
- cohesibility
- myrmecochory
- hypsometrist
- hypercoaster
- physiolaters
- polychroisms
- stereochromy
- toyishnesses
- hyperorexias
- hypsophobias
- crymotherapy
- hypovolaemia
- hypovolaemic
- parochiality
- polychromous
- apocynthions
- whiteboyisms
- hydropathics
- myrmecophily
- orthocephaly
- phototypeset
- phrontistery
- hypocorismas
- rhythmometer
- organography
- osteichthyan
- headstrongly
- hydropathist
- trichophyton
- biorhythmics
- rhythmopoeia
- hyracoideans
- hypoxidaceae
- monophysitic
- lymphopenias
- hydrogen-bomb
- palaeography
- dactylorhiza
- hymnographer
- hypocotylous
- petroglyphic
- selenography
- physostigmin
- hydrophanous
- retrophyllum
- dendroglyphs
- hymnological
- greyish-brown
- physostomous
- psychodelias
- zoophytology
- dryopithecus
- high-velocity
- hydrophilies
- hymnologists
- esthesiology
- cryohydrates
- synchroflash
- hydrophilite
- holophytisms
- hyalomelanes
- hydrophilous
- phoneynesses
- heterostyled
- oxysulphides
- myxocephalus
- keratophyres
- macrocephaly
- phytobenthos
- homogonously
- hydrophobous
- chartography
- charcoal-gray
- cryophoruses
- charcoal-grey
- alcoholicity
- synchroniser
- phycomycosis
- hydrophytons
- hyperidrosis
- hydrophytous
- hypoeutectic
- hysterogenic
- sphygmograms
- antihydrogen
- hyoscyamuses
- psychognoses
- technography
- psychognosis
- halophytisms
- homoiothermy
- rehypnotised
- phytogeneses
- rehypnotises
- gonorhynchus
- phytogenesis
- psychogonies
- hysteromania
- chalcography
- schizomycete
- phytogenetic
- cometography
- hypogastrium
- sphygmometer
- cymotrichies
- photoglyphic
- polysulphide
- heterothally
- cymotrichous
- sphygmophone
- hysteroscopy
- anarthrously
- phyllocladus
- monophyllous
- lyophilisers
- sphygmoscope
- phytographer
- psychography
- haematocryal
- sindonophany
- monophyodont
- shove-ha'penny
- phytographic
- oncorhynchus
- monophysites
- schizophytes
- hydroquinols
- schizophytic
- hypermetropy
- distichously
- omphalomancy
- archaeometry
- herbaceously
- haematolyses
- hypognathism
- phytological
- phylloscopus
- schizothymic
- hydatidiform
- hyperactions
- thingamybobs
- petrophysics
- phytologists
- hyperoglyphe
- sycophantise
- thyreophoran
- philogynists
- cynophilists
- nourishingly
- hydnocarpate
- haematoxylic
- coyishnesses
- haematoxylin
- tracheoscopy
- historifying
- phyllostomus
- hypolimnions
- thirty-fourth
- brownish-gray
- amyotrophies
- ostariophysi
- pyritohedral
- pyritohedron
- sycophantize
- brownish-grey
- psychomachia
- osteichthyes
- historiology
- saprophytism
- cyberphobias
- dasyphyllous
- pharyngology
- phytophagies
- thirty-second
- phylogenesis
- chirurgeonly
- hydrophyllum
- zygomorphous
- typhlologies
- psychometers
- pyrocatechin
- hypersarcoma
- thyroprotein
- euglenophyta
- pharyngotomy
- euglenophyte
- caulophyllum
- homonymities
- thingummybob
- psammophytes
- urethroscopy
- psammophytic
- haemocyanins
- pachydermous
- cyanophyceae
- nychthemeron
- copyrighters
- grayish-brown
- clinocephaly
- stoechiology
- diapophysial
- enhypostasia
- phonotypical
- photolysable
- phytotomists
- polyurethans
- thermochromy
- enhypostatic
- thyrsopteris
- hypersomnias
- erythrocebus
- glyptography
- phonotypists
- asphyxiators
- reprehensory
- fractography
- mythogeneses
- mythogenesis
- thysanoptera
- hyperbolised
- hyponitrites
- forefatherly
- pyrographers
- hyperbolises
- erythroderma
- synantherous
- hamartiology
- pyrographies
- nyctophobias
- hyperbolisms
- erythrolysin
- stoichiology
- sulphurously
- hieroglyphed
- mythologians
- archeobotany
- iontotherapy
- mythologised
- homopolarity
- mythologiser
- acantholysis
- idiorhythmic
- pollyannaish
- chrysocollas
- mythologises
- cottony-white
- cryptophytes
- tracheophyta
- polygraphies
- psychoticism
- hypophrygian
- cryptophytic
- typographist
- erythroxylon
- hydroxoniums
- thiodiglycol
- erythroniums
- chrysolophus
- erythroxylum
- macrophysics
- hypervolemia
- gnetophytina
- erythropenia
- glyphographs
- zoochemistry
- glyphography
- hypoplasties
- drosophyllum
- eretmochelys
- hypoplastron
- cryptorchidy
- erythropsias
- hypoploidies
- hypercolours
- massotherapy
- tachyglossus
- azithromycin
- homeotypical
- pachycarpous
- haematolysis
- mythopoeisms
- hypnogenesis
- endophyllous
- trochaically
- mythopoeists
- cringeworthy
- glyptothecae
- homotaxially
- mealy-mouthed
- hydrozincite
- laryngophony
- haematoxylon
- chlamyphorus
- haematoxylum
- parapophyses
- parapophysis
- ichthyocolla
- ampelography
- glossography
- pseudography
- allychollies
- zanthoxylums
- tetrachotomy
- phycophaeins
- stepmotherly
- trichocystic
- phycoxanthin
- locksmithery
- hypostasised
- hyaloplasmic
- hypostasises
- monkey-wrench
- chimneyboard
- trichogynial
- cyclohexanol
- spermophytes
- hypostasized
- spermophytic
- hyetographic
- hypostasizes
- ichthyolites
- hypobasidium
- heteroblasty
- ichthyolitic
- phaeophyceae
- ichthyologic
- thrombectomy
- hypostatical
- ethnobiology
- acronychally
- polychromise
- forty-seventh
- hypostatised
- polychromize
- pyrocephalus
- parahydrogen
- hydroelastic
- hypostatises
- pyrochemical
- unheroically
- trochoidally
- phaenotyping
- ichthyophagy
- rhabdomyomas
- holometaboly
- pompholygous
- cladophyllum
- hydroforming
- rhodophyceae
- liothyronine
- hyposthenias
- heterochrony
- ichthyopsids
- brachycerous
- rachycentron
- morphography
- dynamographs
- pyrophoruses
- hemimetaboly
- ornithomancy
- berycomorphi
- pyelographic
- chondrifying
- shockability
- heterodactyl
- keratohyalin
- hypostresses
- ichthyosauri
- enantiopathy
- hygrochasies
- hygrochastic
- hypostrophes
- cyclographic
- humourlessly
- hydrogenator
- hypocreaceae
- myriophyllum
- phagocytical
- gamophyllous
- parthenogeny
- hyposulphate
- ornithophily
- tyroglyphids
- hygrographic
- phagocytised
- hydrogenised
- hyposulphite
- brachylogies
- phagocytises
- monochromacy
- hydrogenises
- brachylogous
- schizothymia
- monochromasy
- ceramography
- shaggy-coated
- psychonomics
- ectypography
- phagocytisms
- lepidochelys
- charley-horse
- myrmecophaga
- hydrogenized
- reproachably
- thymectomise
- phyllomanias
- hydrogenizes
- ornithoscopy
Phrases (180)
- chlorophyll a
- woody guthrie
- molly pitcher
- mrs. henry wood
- horn of plenty
- hockey clinic
- hockey league
- mount whitney
- john roy major
- dwight l. moody
- honeyed words
- northrop frye
- string theory
- poetic rhythm
- jockey shorts
- policy change
- genus halcyon
- acid hydrogen
- edmond halley
- arthur symons
- allyl alcohol
- brown hickory
- three-year-old
- rhesus monkey
- a. noam chomsky
- thyme camphor
- shetland pony
- breach of duty
- heroic poetry
- lens of the eye
- hackney coach
- marilyn horne
- hydroxide ion
- cringe worthy
- bobby fischer
- happy-go-lucky
- carry through
- physical body
- sir fred hoyle
- harry houdini
- mesh topology
- firth of clyde
- day of the week
- sir henry wood
- hylobates lar
- ship's company
- genus corypha
- methyl phenol
- aldous huxley
- chlorophyll b
- chlorophyll c
- chlorophyll d
- holy of holies
- stay together
- ethyl alcohol
- whitney young
- anthony wayne
- body snatcher
- timothy leary
- daytona beach
- holy saturday
- spiny dogfish
- weymouth pine
- honey buzzard
- holy thursday
- ichneumon fly
- throwing away
- hockey player
- hockey season
- breeches buoy
- otto meyerhof
- ground cherry
- hydrazo group
- chinese holly
- think factory
- rhythm method
- swamp hickory
- heavenly body
- orchid family
- primary tooth
- typhoid fever
- hemp agrimony
- hog cranberry
- bloom of youth
- african holly
- gallop rhythm
- aum shinrikyo
- right of entry
- galois theory
- school system
- roll in the hay
- georgy zhukov
- john wycliffe
- chicory plant
- heavy torpedo
- johnny-jump-up
- hydrogen atom
- true mahogany
- groundhog day
- hydrogen bond
- shock therapy
- blighty wound
- sunday school
- horse cavalry
- chrome yellow
- tapestry moth
- bounty hunter
- lord rayleigh
- shoe industry
- horse parsley
- clothes dryer
- child prodigy
- payroll check
- group therapy
- country house
- pink of my john
- belly whopper
- human ecology
- phone company
- anchovy paste
- scotch whisky
- money changer
- thyroid gland
- anchovy pizza
- anchovy sauce
- money handler
- horsefly weed
- black hickory
- fourth of july
- yorkshire fog
- charity throw
- cherry tomato
- wood hyacinth
- henry m. robert
- susan anthony
- water hickory
- bayes' theorem
- john burgoyne
- legal holiday
- plymouth rock
- one of the boys
- light company
- hussar monkey
- trolley coach
- spotted hyena
- yellow hornet
- saint timothy
- synodic month
- brigham young
- indian python
- youth crusade
- youth culture
- royal charter
- butyl alcohol
- camphor daisy
- domino theory
- cavalry horse
- thomas huxley
- month by month
- oklahoma city
- mahogany tree
- harry hotspur
- thomas malory
- rotary harrow
- cornish pasty
- howard florey
- yellow squash
- flying school
- atomic theory
- solar physics
- genus hypoxis
- howler monkey
- lay on the line
- methyl orange
- hoary alyssum
- otho of lagery
- josiah quincy
- hoary puccoon
- bombycid moth
- thor hyerdahl