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There are 19 fifteen-letter words containing A, D, E, I, 2O, S and U

ANDROMONOECIOUSandromonoecious adj. (Botany) Producing both bisexual and male flowers on the same plant.
ANDROMONOECIOUS adj. having hermaphrodite and male flowers on the same plant.
AUTOTETRAPLOIDSautotetraploids n. Plural of autotetraploid.
AUTOTETRAPLOID n. an individual or strain whose chromosome complement consists of four copies of a single genome due to doubling of an ancestral chromosome complement.
BASIDIOMYCETOUSbasidiomycetous adj. Relating to the basidiomycetes.
BASIDIOMYCETOUS adj. of or like a basidiomycete.
CHENOPODIACEOUSchenopodiaceous adj. (Botany) Of or relating to the family Chenopodiaceae (goosefoots) (now subfamily Chenopodioideae).
CHENOPODIACEOUS adj. belonging to the goosefoot family.
DECOLOURISATIONdecolourisation n. Alternative spelling of decolorization.
DECOLOURISATION n. the process of decolourising, also DECOLORISATION, DECOLORIZATION, DECOLOURIZATION.
DECOMMUNISATIONdecommunisation n. Non-Oxford British spelling standard spelling of decommunization.
de-communisation n. Alternative form of decommunisation.
de-Communisation n. Alternative form of decommunisation.
DEFLOCCULATIONSdeflocculations n. Plural of deflocculation.
DEFLOCCULATION n. the process of deflocculating.
DISCOMBOBULATEDdiscombobulated v. Simple past tense and past participle of discombobulate.
discombobulated adj. (Informal) Confused, embarrassed, upset.
discombobulated adj. (Informal) Broken, mixed up.
DISCOMBOBULATESdiscombobulates v. Third-person singular simple present indicative form of discombobulate.
DISCOMBOBULATE v. to throw into a state of confusion, also DISCOMBOBERATE.
DOLICHOSAURUSESDOLICHOSAURUS n. any member of the Dolichosauria, a group of Cretaceous fossil reptiles.
DOWNREGULATIONSdownregulations n. Plural of downregulation.
DOWNREGULATION n. the process of reducing or suppressing a response to a stimulus.
ECHINODERMATOUSechinodermatous adj. (Zoology) Relating to Echinodermata; echinodermal.
ECHINODERMATOUS adj. of or like an echinoderm.
EDRIOPHTHALMOUSedriophthalmous adj. (Zoology) Pertaining to the Edriophthalma, a former classification of peracarids.
EDRIOPHTHALMOUS adj. of crustaceans, with stalkless eyes, also EDRIOPHTHALMIAN, EDRIOPHTHALMIC.
IMMUNODIAGNOSESimmunodiagnoses n. Plural of immunodiagnosis.
IMMUNODIAGNOSIS n. a diagnosis relating to immunology.
OXIDOREDUCTASESoxidoreductases n. Plural of oxidoreductase.
OXIDOREDUCTASE n. an enzyme that catalyzes an oxidationreduction reaction.
PHOTODUPLICATESphotoduplicates n. Plural of photoduplicate.
PHOTODUPLICATE v. to duplicate by photocopier.
POSTDEVALUATIONpostdevaluation adj. After a financial devaluation.
POSTDEVALUATION adj. taking place after devaluation.
PSEUDOARTHROSISpseudoarthrosis n. Alternative form of pseudarthrosis.
PSEUDOARTHROSIS n. a joint formed by fibrous tissue bridging the gap between the two fragments of bone of an old fracture that have not united, also PSEUDARTHROSIS.
SUPERORDINATIONsuperordination n. The ordination of a person to fill a station already occupied; especially, the ordination by an ecclesiastical…
superordination n. (Logic) The relation of a universal proposition to a particular proposition in the same terms.
SUPERORDINATION n. the relation of a universal proposition to a particular proposition in the same terms.

Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.
Definitions are short excerpt from the WikWik.org and 1Word.ws.

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See this list for:

  • English Wiktionary: 234 words
  • Scrabble in French: 76 words
  • Scrabble in Spanish: 66 words
  • Scrabble in Italian: 46 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 55 words


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