18-Letter Words Containing: _,I,O,Y
(In Any Order)
There are 124 18 letter words,
558 18 letter phrases and
0 18 letter abbr's with
_,I,O,Y in.
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| Word | Save | Length | Usage | Points | Type | ||
|---|---|---|---|---|---|---|---|
We couldn't find any valid Scrabble US words with a length of 18. Try changing the version of the game.
Tip: Scrabble EU allows far more words than US! | |||||||
All 18 Letter Words
Words (124)
- disproportionately
- inconsequentiality
- hypercoagulability
- sociopsychological
- psychopathological
- hyperaldosteronism
- neuropsychological
- ultrarevolutionary
- trichloroethylenes
- transformationally
- tachistoscopically
- submicroscopically
- stoichiometrically
- stereospecifically
- sphygmomanometries
- spectroheliography
- somnambulistically
- semiprofessionally
- semiconservatively
- sedimentologically
- roentgenologically
- representationally
- recrystallizations
- quantificationally
- psychophysiologist
- psychophysiologies
- psychopathologists
- psychobiographical
- psychoanalytically
- propagandistically
- postpsychoanalytic
- polyribonucleotide
- polyesterification
- polychromatophilic
- polychromatophilia
- polyacrylonitriles
- phytohemagglutinin
- physiopathological
- photosynthetically
- phenomenologically
- pathophysiological
- overoptimistically
- oscillographically
- orthopsychiatrists
- ophthalmologically
- neuropsychologists
- neuropsychiatrists
- neurophysiologists
- neuroendocrinology
- myeloproliferative
- microcrystallinity
- methylprednisolone
- metallographically
- magnetostrictively
- lymphangiographies
- lipopolysaccharide
- incommensurability
- immunocytochemical
- hyposensitizations
- hypophysectomizing
- hypersensitization
- hyperrationalities
- hyperpolarizations
- hyperpigmentations
- hypernationalistic
- hyperimmunizations
- hyperconsciousness
- hyperconcentration
- hyperalimentations
- hydroxytryptamines
- hydrometeorologist
- hydrometeorologies
- hydrometallurgists
- hydrometallurgical
- hydroelectricities
- histophysiological
- granulocytopoiesis
- granulocytopoieses
- glycosaminoglycans
- geochronologically
- electrophysiologic
- electromyographies
- diphenylhydantoins
- dihydroergotamines
- dephosphorylations
- deoxyribonucleases
- demythologizations
- dehydrochlorinates
- dehydrochlorinated
- dehydrochlorinases
- collectivistically
- coccidioidomycoses
- claustrophobically
- cholecystectomized
- chlortetracyclines
- autobiographically
- aerothermodynamics
- unconstitutionally
- triphosphopyridine
- tetraiodothyronine
- spectrographically
- rhinolaryngologist
- pteridospermaphyta
- psychotherapeutics
- polypropenonitrile
- noncomprehensively
- neurophysiological
- multifunctionality
- mucopolysaccharide
- laryngopharyngitis
- hypoparathyroidism
- hypercholesteremia
- hydroxychloroquine
- hydroflumethiazide
- homobasidiomycetes
- histocompatibility
- diethylstilbestrol
- diethylmalonylurea
- cytoarchitectonics
- counterintuitively
- corynebacteriaceae
- coccidioidomycosis
- calymmatobacterium
- anthropocentricity
Phrases (558)
- yemeni monetary unit
- worldly possessions
- vladimir mayakovsky
- victory in europe day
- victory celebration
- vaccinium oxycoccus
- typographical error
- turnip-rooted celery
- treaty of versailles
- thyrotropic hormone
- tendonous synovitis
- syzygium aromaticum
- syrian monetary unit
- supervisory routine
- superiority complex
- suborder myxinoidei
- solid body substance
- sir henry joseph wood
- short-term liability
- selective lipectomy
- security consultant
- rheims-douay version
- revolutionary group
- respiratory illness
- republic of paraguay
- reproductive memory
- read-only memory chip
- qatari monetary unit
- priority processing
- posterior pituitary
- polygala paucifolia
- politically correct
- polish monetary unit
- podilymbus podiceps
- physiological state
- physical phenomenon
- physical attraction
- phoenix dactylifera
- parkinson's syndrome
- papuan monetary unit
- p-type semiconductor
- ostrya carpinifolia
- order sauropterygia
- order ichthyosauria
- oil-industry analyst
- navigational system
- modal auxiliary verb
- military government
- military expedition
- magnoliopsid family
- low-birth-weight baby
- lighthorse harry lee
- lachrymal secretion
- kilocycle per second
- keyboard instrument
- kenyan monetary unit
- james whitcomb riley
- indian monetary unit
- hypostasis of christ
- hypertonic solution
- henry norris russell
- gustatory sensation
- great pyramid of giza
- gossypium herbaceum
- geophysical science
- genetic abnormality
- gene delivery vector
- fulminate of mercury
- freudian psychology
- family scorpaenidae
- family scolopacidae
- family polygalaceae
- family motacillidae
- family magnoliaceae
- family loranthaceae
- family heteromyidae
- eriobotrya japonica
- envoy extraordinary
- element of a cylinder
- electronics company
- education secretary
- dylan marlais thomas
- douay-rheims version
- division cynodontia
- division anthophyta
- digitalis glycoside
- danish monetary unit
- dame sybil thorndike
- cytotropic antibody
- cyrus hall mccormick
- cyanocitta cristata
- computer memory unit
- commercial activity
- columbia university
- class schizomycetes
- class hyalospongiae
- class dicotyledonae
- carrying into action
- capital of new jersey
- bombycilla garrulus
- bombycilla cedrorun
- auxiliary operation
- astronomy satellite
- assyrian neo-aramaic
- aruban monetary unit
- apodemus sylvaticus
- antipsychotic agent
- analysis of variance
- amlodipine besylate
- ambystoma mexicanum
- alytes obstetricans
- allegheny mountains
- albert szent-gyorgyi
- agropyron cristatum
- afghan monetary unit
- administrative body
- 5-hydroxytryptamine
- zero-coupon security
- yevgeni yevtushenko
- yellowtail flounder
- yellow pitcher plant
- yellow lady's slipper
- yellow bristlegrass
- yellow bristle grass
- xyphophorus helleri
- xylomelum pyriforme
- wynnea sparassoides
- winter olympic games
- willie howard mays jr.
- william henry hudson
- william henry hoover
- wesleyan methodists
- water-milfoil family
- wankel rotary engine
- volumetric analysis
- veronica chamaedrys
- vena stylomastoidea
- valedictory speaker
- valedictory oration
- valedictory address
- utility revenue bond
- upholstery material
- university of sussex
- university of oxford
- underground railway
- tyrannus vociferans
- typewriter keyboard
- type of architecture
- tuberculoid leprosy
- transmission system
- transfiguration day
- toxic shock syndrome
- toxemia of pregnancy
- torreya californica
- topographic anatomy
- top fermenting yeast
- tongan monetary unit
- time-and-motion study
- third battle of ypres
- third baron rayleigh
- theory of relativity
- theory of indicators
- temporary expedient
- telephone directory
- systema urogenitale
- systema digestorium
- system of numeration
- synaptomys borealis
- symplocus tinctoria
- symphoricarpos alba
- sydney harbor bridge
- supervisory program
- superfamily apoidea
- suborder lipotyphla
- subfamily dorylinae
- subfamily acoraceae
- storage-battery grid
- stereophonic system
- stanford university
- st. ignatius of loyola
- spotsylvania county
- spanish oyster plant
- southern yellow pine
- sodium hypochlorite
- sociological theory
- social anthropology
- sir george trevelyan
- short gastric artery
- shorea teysmanniana
- sensory deprivation
- segmentation cavity
- secondary education
- secondary dentition
- scolymus hispanicus
- saxifraga hypnoides
- ruby-crowned kinglet
- rocky-mountain maple
- rocky mountain sheep
- rocky mountain pinon
- robotic telesurgery
- riemannian geometry
- respiratory disease
- reproductive system
- religious mysticism
- regression analysis
- refrigeration dryer
- red-green dichromacy
- recreation facility
- radiation pyrometer
- quercus chrysolepis
- quantum field theory
- quadriphonic system
- quadraphonic system
- pyrrhuloxia sinuata
- pyrophosphoric acid
- pyrola rotundifolia
- pyorrhea alveolaris
- pylodictus olivaris
- psychotria capensis
- psychological state
- prumnopitys elegans
- prophylactic device
- projective geometry
- procyon cancrivorus
- procursive epilepsy
- potassium hydroxide
- portal hypertension
- porphyrio porphyrio
- polystichum braunii
- polypodium scouleri
- polyphosphoric acid
- polygonum orientale
- phyllostachys nigra
- photogenic epilepsy
- phonological system
- philippine mahogany
- peromyscus eremicus
- penstemon rydbergii
- penstemon newberryi
- pellitory-of-the-wall
- parathyroid hormone
- palestine authority
- oxytropis lambertii
- oriental bush cherry
- order temnospondyli
- order synentognathi
- order solenichthyes
- order psilophytales
- order polymastigina
- order mycrosporidia
- order cypriniformes
- order colymbiformes
- order actinomyxidia
- olfactory sensation
- nyctanassa violacea
- nikolai lobachevsky
- naturally occurring
- narrowbody aircraft
- narrow-body aircraft
- n-type semiconductor
- myosotis scorpiodes
- myositis trichinosa
- myelocytic leukemia
- mycteroperca bonaci
- myasthenic syndrome
- muhammad ali of egypt
- morning-glory family
- monocytic leukaemia
- monoclonal antibody
- military commission
- military censorship
- mikhail baryshnikov
- microscopic anatomy
- michael gerald tyson
- merovingian dynasty
- meadow-beauty family
- mathematical symbol
- marie goeppert mayer
- maria goeppert-mayer
- magnetic core memory
- magnesium hydroxide
- macroscopic anatomy
- lysiloma bahamensis
- lycopodium obscurum
- lycopodium clavitum
- lycium halimifolium
- lycium carolinianum
- lucius dubignon clay
- louis henry sullivan
- lip synchronization
- lip synchronisation
- limnocryptes minima
- libyan monetary unit
- libyan islamic group
- liberation theology
- leycesteria formosa
- lepiota clypeolaria
- lepidochelys kempii
- learner's dictionary
- lathyrus latifolius
- kurdistan labor pary
- korsakov's psychosis
- kingdom prokaryotae
- john griffith chaney
- jessica lucy mitford
- jamaica honeysuckle
- jacksonian epilepsy
- italian honeysuckle
- isopyrum biternatum
- ipomoea leptophylla
- ion-exchange polymer
- interagency support
- inorganic chemistry
- infraorbital artery
- inflationary spiral
- inferiority complex
- in your birthday suit
- in one's birthday suit
- hysterical neurosis
- hypsiglena torquata
- hypoplastic anaemia
- hypophosphoric acid
- hypoglycaemic agent
- hypochromic anaemia
- hypo-eutectoid steel
- hyperfocal distance
- hyperchromic anemia
- hyperbolic geometry
- hynerpeton bassetti
- hydroxybutyric acid
- hydroxybenzoic acid
- hydropower industry
- hydrokinetic engine
- hyalophora cecropia
- heterophil antibody
- heterodyne receiver
- henry viii of england
- helicobacter pylori
- heavyweight torpedo
- gyromitra esculenta
- gymnadenia conopsea
- guilt by association
- grievous bodily harm
- gregory of nazianzus
- gregory of nazianzen
- greenhouse whitefly
- green monkey disease
- great yellow gentian
- government security
- government activity
- golden fairy lantern
- gigacycle per second
- german monetary unit
- geothermal industry
- geostationary orbit
- georgiana barrymore
- genyonemus lineatus
- genus strobilomyces
- genus platypoecilus
- genus mycobacterium
- genus ichthyosaurus
- genus hyracotherium
- genus hyacinthoides
- genus gymnocalycium
- genus ginglymostoma
- genus clethrionomys
- genus chrysochloris
- genus chilomycterus
- genus argyroxiphium
- genus acanthocybium
- genital personality
- fringed poppy mallow
- fractional currency
- four-wing flying fish
- flowering raspberry
- float-type rain gauge
- first battle of ypres
- first baron tennyson
- first baron macaulay
- fine-art photography
- february revolution
- family xenosauridae
- family volvariaceae
- family trombidiidae
- family trionychidae
- family torpedinidae
- family synodontidae
- family symplocaceae
- family stromateidae
- family roridulaceae
- family roccellaceae
- family rhizobiaceae
- family rhiptoglossa
- family rhinobatidae
- family relationship
- family polyporaceae
- family polygonaceae
- family plasmodiidae
- family phalaropidae
- family papilionacea
- family palaemonidae
- family orchestiidae
- family oleandraceae
- family notoryctidae
- family notonectidae
- family nephropsidae
- family mylodontidae
- family myliobatidae
- family musophagidae
- family monodontidae
- family microhylidae
- family megapodiidae
- family macropodidae
- family loxomataceae
- family littorinidae
- family lecanoraceae
- family hypoxidaceae
- family hypocreaceae
- family hydrobatidae
- family holothuridae
- family hemerobiidae
- family haloragaceae
- family goodeniaceae
- family gobiesocidae
- family forficulidae
- family endamoebidae
- family embiotocidae
- family crocodylidae
- family cordaitaceae
- family combretaceae
- family colchicaceae
- family cladoniaceae
- family chironomidae
- family cetorhinidae
- family ceratopsidae
- family cephalobidae
- family cecropiaceae
- family cecidomyidae
- family catostomidae
- family bromeliaceae
- family bradypodidae
- family boraginaceae
- family bignoniaceae
- family aulostomidae
- family argonautidae
- family anomalopidae
- family ambrosiaceae
- family allioniaceae
- eusebius hieronymus
- european bird cherry
- euonymus americanus
- eucalyptus coriacea
- ethyl aminobenzoate
- erythronium albidum
- erythema multiforme
- eriophyllum lanatum
- energy of activation
- endothelial myeloma
- embryonal carcinoma
- electron microscopy
- edwin dubois hayward
- dynamic loudspeaker
- dryopteris goldiana
- dryopteris fragrans
- dryopteris filix-mas
- dryopteris dilatata
- drunk-and-disorderly
- drepanocytic anemia
- dorothy leigh sayers
- doctor of philosophy
- division rhodophyta
- division phaeophyta
- division myxomycota
- division cyanophyta
- diversionary attack
- dissociation energy
- disorderly behavior
- discretionary trust
- diplomatic immunity
- digital photography
- deflationary spiral
- cytophilic antibody
- cytisus multiflorus
- cystopteris montana
- cystophora cristata
- cyrtomium aculeatum
- cyrilla racemiflora
- cynoscion nebulosus
- cynoglossum amabile
- cyclopes didactylus
- cryptotermes brevis
- cryptogramma crispa
- cross-country skiing
- cross-country riding
- countervailing duty
- counterbattery fire
- coryphaena hippurus
- coronary thrombosis
- cordyline australis
- coordinate geometry
- conversion hysteria
- competitor analysis
- comparative anatomy
- common morning glory
- common lady's-slipper
- commodity brokerage
- collective security
- colaptes chrysoides
- coelenterate family
- clinical psychology
- claytonia virginica
- classical philology
- classical mythology
- class ginkgophytina
- class dicotyledones
- class cyanobacteria
- circulatory failure
- chrysolophus pictus
- chrysobalanus icaco
- charles digby harrod
- ceylon cinnamon tree
- catalytic converter
- carolingian dynasty
- california sycamore
- bursera microphylla
- buchloe dactyloides
- british labour party
- brevoortia tyrannis
- boy scouts of america
- blackbody radiation
- black-body radiation
- binge-vomit syndrome
- binge-purge syndrome
- bicycle-built-for-two
- bastardy proceeding
- bank holding company
- bachelor of divinity
- baby-boom generation
- automobile industry
- auditory perception
- asterid dicot family
- arytenoid cartilage
- articulatory system
- aronia berry liqueur
- army of the righteous
- apodictic certainty
- apocynum cannabinum
- anticipatory breach
- anomalopteryx oweni
- analytical geometry
- american pennyroyal
- american labor party
- aluminium hydroxide
- african green monkey
- admiralty mountains
- adlerian psychology
- aconitum lycoctonum
- abdominal pregnancy
