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There are 16 fifteen-letter words containing A, I, O, 2S, T, U and Y

AGRANULOCYTOSISagranulocytosis n. (Pathology) An acute condition involving a severe and dangerous leukopenia, particularly of neutrophils…
AGRANULOCYTOSIS n. a blood disorder in which there is a marked decrease in granulocytes, with lesions of the mucous membrane and skin.
BASIDIOMYCETOUSbasidiomycetous adj. Relating to the basidiomycetes.
BASIDIOMYCETOUS adj. of or like a basidiomycete.
CLEISTOGAMOUSLYcleistogamously adv. In a cleistogamous fashion.
CLEISTOGAMOUS adv. relating to cleistogamy, the production of small inconspicuous closed self-pollinating flowers additional to and often more fruitful than showier ones on the same plant, also CLEISTOGAMIC.
DISQUISITIONARYdisquisitionary adj. Pertaining to disquisition; disquisitional.
DISQUISITIONARY adj. of or like a disquisition, also DISQUISITIONAL, DISQUISITIVE, DISQUISITORY.
HYPERFASTIDIOUShyperfastidious adj. Extremely fastidious.
HYPERFASTIDIOUS adj. excessively fastidious.
ICHTHYOSAURIANSichthyosaurians n. Plural of ichthyosaurian.
ICHTHYOSAURIAN n. a large fossil marine reptile, also ICHTHYOSAUR, ICHTHYOSAURUS.
ICHTHYOSAURUSESICHTHYOSAURUS n. a large fossil marine reptile, also ICHTHYOSAUR, ICHTHYOSAURIAN.
IMMUNOASSAYISTSIMMUNOASSAYIST n. one who carries out immunoassays.
INSTANTANEOUSLYinstantaneously adv. Without any delay; in an instantaneous manner.
INSTANTANEOUS adv. done, occurring, or acting without any perceptible duration of time.
POSTSTIMULATORYpoststimulatory adj. After stimulation.
POSTSTIMULATORY adj. following stimulation.
PSYCHOACOUSTICSpsychoacoustics n. The scientific study of all the psychological interactions between humans and the world of sound; includes…
PSYCHOACOUSTICS n. a branch of science dealing with the perception of sound, the sensations produced by sounds, and the problems of communication.
PSYCHOSEXUALITYpsychosexuality n. The psychological aspects of sexuality.
PSYCHOSEXUALITY n. the psychic factors of sex.
SANCTIMONIOUSLYsanctimoniously adv. In a sanctimonious manner.
SANCTIMONIOUS adv. hypocritically pious or devout.
SAUROPTERYGIANSsauropterygians n. Plural of sauropterygian.
SAUROPTERYGIAN n. any carnivorous Mesozoic marine reptile of the group Sauropterygia, with paddle-like limbs.
SUBSTITUTIONARYsubstitutionary adj. Of or relating to substitution or replacement.
SUBSTITUTIONARY adj. relating to substitution.
SUPPOSITIONALLYsuppositionally adv. In a suppositional manner; by means of, or in the context of, supposition.
SUPPOSITIONAL adv. having the nature of a supposition.

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 1Word.ws and WikWik.org.

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See this list for:

  • English Wiktionary: 86 words
  • Scrabble in French: 17 words
  • Scrabble in Spanish: 17 words
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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