18-Letter Words Containing: _,I,O,S,S,T
(In Any Order)
There are 163 18 letter words,
435 18 letter phrases and
0 18 letter abbr's with
_,I,O,S,S,T 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 (163)
- gastroenterologist
- transubstantiation
- interconnectedness
- antivivisectionist
- hyperaldosteronism
- verisimilitudinous
- unprofitablenesses
- uniformitarianisms
- ultrasophisticated
- ultraconservatives
- ultraconservatisms
- triskaidekaphobias
- triboluminescences
- transportabilities
- transistorizations
- transilluminations
- thermoplasticities
- tachistoscopically
- supranationalities
- supersophisticated
- superminicomputers
- supercivilizations
- superadministrator
- subclassifications
- subcategorizations
- structuralizations
- stereospecifically
- stereoregularities
- sphygmomanometries
- spectrohelioscopes
- spectroheliographs
- somnambulistically
- simultaneousnesses
- shortsightednesses
- semidomestications
- semiconservatively
- satisfactorinesses
- revascularizations
- rehospitalizations
- redistributionists
- recrystallizations
- reconstructionists
- reconstructionisms
- rambunctiousnesses
- radiosensitivities
- questionablenesses
- quasiperiodicities
- psychophysiologist
- psychopathologists
- pseudotuberculosis
- praiseworthinesses
- postpsychoanalytic
- postmillennialists
- postmillennialisms
- postmillenarianism
- photosensitization
- photosensitivities
- photomorphogenesis
- photodissociations
- photodisintegrates
- phosphodiesterases
- pertinaciousnesses
- overprotectiveness
- overindustrializes
- overindebtednesses
- overembellishments
- overclassification
- otherworldlinesses
- ostentatiousnesses
- orthopsychiatrists
- opinionativenesses
- nonrepresentatives
- nondiscriminations
- nondestructiveness
- noncooperationists
- nonarbitrarinesses
- nonanthropologists
- neurotransmissions
- neuropsychologists
- neuropsychiatrists
- neurophysiologists
- multifariousnesses
- misrepresentations
- misinterpretations
- misidentifications
- misclassifications
- misadministrations
- microdensitometers
- meretriciousnesses
- mechanochemistries
- maladministrations
- magnetoresistances
- lepidopterologists
- irresponsibilities
- introspectionistic
- interrelationships
- institutionalising
- inhospitablenesses
- industrializations
- incontestabilities
- incombustibilities
- impersonalizations
- immunosuppressants
- immunopathologists
- hyposensitizations
- hypersensitization
- hydrometallurgists
- homoscedasticities
- histophysiological
- granulocytopoiesis
- granulocytopoieses
- gastroenterologies
- ethnomusicologists
- electrodepositions
- electrochemistries
- disputatiousnesses
- disintermediations
- discourteousnesses
- discontentednesses
- disconsolatenesses
- disconnectednesses
- diastereoisomerism
- dephosphorylations
- depersonalizations
- denominationalisms
- deconstructionists
- creditworthinesses
- countersuggestions
- counterstrategists
- counteraggressions
- counteraccusations
- conversationalists
- contradistinctions
- contemptiblenesses
- consubstantiations
- constructivenesses
- constitutionalizes
- constitutionalists
- constitutionalisms
- conservativenesses
- consequentialities
- congregationalists
- congregationalisms
- commensurabilities
- bloodthirstinesses
- biotransformations
- bacteriorhodopsins
- australopithecines
- astrophotographies
- archaeoastronomies
- anticommercialisms
- unsatisfactoriness
- unquestionableness
- sentimentalisation
- pteridospermopsida
- psychotherapeutics
- homobasidiomycetes
- diethylstilbestrol
- cross-fertilization
- cross-fertilisation
- corrosion-resistant
- arteriolosclerosis
- anticholinesterase
Phrases (435)
- voiceless consonant
- treaty of versailles
- tomistoma schlegeli
- theodosius the great
- tendonous synovitis
- tangible possession
- supervisory routine
- suborder anisoptera
- solidago spathulata
- solid body substance
- solenostemon blumei
- social organisation
- sir martin frobisher
- sir frederick ashton
- sir christopher wren
- sir arthur john evans
- security consultant
- scottish highlander
- scorpio the scorpion
- respiratory illness
- priority processing
- president jefferson
- populus tremuloides
- pooecetes gramineus
- political dissident
- polianthes tuberosa
- poisonous substance
- physiological state
- oscar hammerstein ii
- orthotomus sutorius
- oil-industry analyst
- oceanites oceanicus
- newspaper columnist
- neuropterous insect
- navigational system
- national censorship
- musical composition
- musculus temporalis
- material possession
- logistic assistance
- logistic assessment
- isabella i of castile
- hypostasis of christ
- houses of parliament
- herpestes ichneumon
- health professional
- gustatory sensation
- george westinghouse
- genus struthiomimus
- genus recurvirostra
- genus melopsittacus
- genus eschscholtzia
- first epistle of john
- essential condition
- essential amino acid
- election commission
- economic assistance
- dylan marlais thomas
- dmitri shostakovich
- distributor housing
- disreputable person
- direct transmission
- digitalis glycoside
- constantin brancusi
- conservation of mass
- commissaire maigret
- colocasia esculenta
- collapsible shelter
- cognitive semantics
- class schizomycetes
- class dicotyledonae
- castanea mollissima
- capital of wisconsin
- capital of tennessee
- bush administration
- book of instructions
- banana passion fruit
- attestation service
- astronomy satellite
- ascension of the lord
- artocarpus communis
- apodemus sylvaticus
- antispasmodic agent
- antagonistic muscle
- amaranthus spinosus
- alytes obstetricans
- air-to-ground missile
- yellow bristlegrass
- yellow bristle grass
- writ of habeas corpus
- woolsorter's disease
- whorled loosestrife
- white slime mushroom
- western ribbon snake
- western mountain ash
- west indian smallpox
- wesleyan methodists
- wandering albatross
- volumetric analysis
- vespertilio murinus
- vena supraorbitalis
- vena stylomastoidea
- vascular prosthesis
- valedictory address
- unspoken accusation
- university of sussex
- united states dollar
- tyrannus vociferans
- tussock caterpillar
- trusteeship council
- trisodium phosphate
- transmission system
- toxic shock syndrome
- topical anaesthesia
- tobacco mosaic virus
- thujopsis dolobrata
- thomas stearns eliot
- thomas gainsborough
- thermosetting resin
- thermoplastic resin
- thermionic emission
- theodor seuss geisel
- thamnophis sirtalis
- thamnophis sauritus
- thamnophis proximus
- textual scholarship
- systema urogenitale
- systema digestorium
- system of numeration
- synaptomys borealis
- symplocus tinctoria
- swiss confederation
- suspended animation
- suborder tarsioidea
- suborder ceratopsia
- subclass actinopoda
- structural genomics
- stress incontinence
- stochastic variable
- stereoscopic vision
- stereophonic system
- stellar association
- steganopus tricolor
- stations of the cross
- starvation acidosis
- stanford university
- stained-glass window
- st. ignatius of loyola
- st. christopher-nevis
- spotsylvania county
- sporobolus poiretii
- spanish oyster plant
- spanish inquisition
- southern hemisphere
- south celestial pole
- sonora semiannulata
- sodium thiosulphate
- sir ernst boris chain
- signal-to-noise ratio
- short saphenous vein
- short gastric artery
- shorea teysmanniana
- sexual relationship
- sensory deprivation
- sensorimotor region
- seminiferous tubule
- semi-sweet chocolate
- secobarbital sodium
- scleroderma bovista
- sciaenops ocellatus
- saratoga spittlebug
- sample distribution
- saint thomas aquinas
- saint thomas a becket
- saint teresa of avila
- sailor's breastplate
- robert james fischer
- rhizopus stolonifer
- rhizoctinia disease
- retarded depression
- respiratory disease
- reproductive system
- religious mysticism
- relative atomic mass
- regression equation
- regional anesthesia
- real-time processing
- reactive depression
- quadriphonic system
- quadraphonic system
- pylodictus olivaris
- pterocarpus indicus
- psychotria capensis
- psychological state
- psoriatic arthritis
- psocopterous insect
- pseudotaxus chienii
- prunus angustifolia
- prumnopitys elegans
- professional tennis
- prionotus carolinus
- president roosevelt
- president john adams
- present progressive
- potos caudivolvulus
- potassium hydroxide
- potassium carbonate
- potamogeton crispus
- positive chemotaxis
- pomatomus saltatrix
- political scientist
- political commissar
- poephila castanotis
- platanus orientalis
- pinnotheres ostreum
- phyllostachys nigra
- phragmites communis
- phonological system
- pezophaps solitaria
- pesticide poisoning
- periodontal disease
- pedilanthus pavonis
- pediculosis capitis
- pedestrian crossing
- paul bustill robeson
- parochetus communis
- paprilus alepidotus
- pancreatic fibrosis
- orthopterous insect
- order ustilaginales
- order solenichthyes
- order rickettsiales
- order psilophytales
- opisthocomus hoazin
- operations research
- omphalotus illudens
- olfactory sensation
- observation station
- nyctanassa violacea
- non-christian priest
- nihilistic delusion
- neurotic depression
- nervous prostration
- national assistance
- nasogastric feeding
- myosotis scorpiodes
- myositis trichinosa
- myasthenic syndrome
- musculus teres minor
- musculus pectoralis
- musculus deltoideus
- musculus buccinator
- multiple regression
- mountain watercress
- mineral association
- military commission
- military censorship
- metabolic alkalosis
- master of ceremonies
- marta brigit nilsson
- malacosoma disstria
- loxostege similalis
- livistona australis
- little spotted skunk
- lip synchronisation
- leycesteria formosa
- leptopteris superba
- lepiota cepaestipes
- leontocebus rosalia
- leontocebus oedipus
- lathyrus latifolius
- laportea canadensis
- lactarius delicioso
- keratosis nigricans
- junction transistor
- joint chiefs of staff
- john ernst steinbeck
- jessica lucy mitford
- jatropha stimulosus
- japanese poinsettia
- james francis thorpe
- islets of langerhans
- iron-storage disease
- indirect expression
- in one's birthday suit
- hysterical neurosis
- hynerpeton bassetti
- huntington's disease
- holocentrus bullisi
- hindu kush mountains
- hibiscus moscheutos
- hesperis matronalis
- helleborus foetidus
- heat of dissociation
- halicoeres radiatus
- guilt by association
- great saphenous vein
- goods and service tax
- genyonemus lineatus
- genus zinjanthropus
- genus trichoglossus
- genus trichodesmium
- genus strobilomyces
- genus stephanomeria
- genus septobasidium
- genus schizopetalon
- genus rhinonicteris
- genus pseudowintera
- genus pleurothallis
- genus platypoecilus
- genus lepidothamnus
- genus lagerstroemia
- genus lactobacillus
- genus ichthyosaurus
- genus hyacinthoides
- genus ginglymostoma
- genus gasterophilus
- genus dicranopteris
- genus clethrionomys
- genus chorizagrotis
- genus chilomycterus
- genus cercopithecus
- genus centropristis
- genus calamagrostis
- genus anoectochilus
- genus actiniopteris
- fringed loosestrife
- first battle of ypres
- first baron tennyson
- fausto paolo sozzini
- fast of the firstborn
- family rhiptoglossa
- euarctos americanus
- estrogen antagonist
- esther hobart morris
- eptesicus serotinus
- epistle to the romans
- epacris obtusifolia
- english hippocrates
- ecclesiastical robe
- ecclesiastical mode
- eastern indigo snake
- eastern fox squirrel
- eastern catholicism
- east indian rosewood
- dryopteris fragrans
- dryopteris filix-mas
- double-breasted suit
- dorothy leigh sayers
- dissociation energy
- discretionary trust
- dicamptodon ensatus
- dianthus latifolius
- desmodium tortuosum
- davidson's penstemon
- daucus carota sativa
- cytisus multiflorus
- cystopteris montana
- cystophora cristata
- cyclopes didactylus
- cutaneous sensation
- cryptotermes brevis
- cross-country skiing
- cross-country riding
- crisis intervention
- court of saint james's
- corrosive sublimate
- coronary thrombosis
- coreopsis tinctoria
- cordyline australis
- cordia gerascanthus
- conversion hysteria
- contopus sordidulus
- continuing trespass
- conduction deafness
- competitor analysis
- compassionate leave
- communist manifesto
- colaptes chrysoides
- cognitive scientist
- clianthus speciosus
- clematis versicolor
- claudius ptolemaeus
- classical mythology
- class holothuroidea
- class hepaticopsida
- class ginkgophytina
- class dicotyledones
- class cyanobacteria
- chrysolophus pictus
- christian schonbein
- choriotis australis
- cholesterosis cutis
- chinese scholartree
- chinese scholar tree
- chinese parasol tree
- charles william post
- chaenopsis ocellata
- cerebral thrombosis
- cercis occidentalis
- celtis occidentalis
- cecil scott forester
- catherine i of russia
- castilleja chromosa
- castanea ozarkensis
- cassia occidentalis
- cassia augustifolia
- casanova de seingalt
- broadcasting studio
- boy scouts of america
- book of ecclesiastes
- bocconia frutescens
- blissus leucopterus
- bidens trichosperma
- barometric pressure
- austrotaxus spicata
- astroloma humifusum
- associative aphasia
- associate professor
- associate in nursing
- assistant professor
- asian tiger mosquito
- articulatory system
- arterial blood gases
- aristotelia serrata
- aristarchus of samos
- arisaema atrorubens
- anarchist communism
- anamnestic response
- agitated depression
- aegilops triuncalis
- adult-onset diabetes
- acoustic resistance
- acoustic absorption
- absorption spectrum
