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There are 18 fifteen-letter words containing A, C, D, E, H, O, S and Y

CHLAMYDOMONADESCHLAMYDOMONAS n. a member of the genus Chlamydomonas of (mainly freshwater) green algae.
CROTONALDEHYDEScrotonaldehydes n. Plural of crotonaldehyde.
CROTONALDEHYDE n. a pungent liquid aldehyde obtained by dehydration of aldol.
CYBERCHONDRIACScyberchondriacs n. Plural of cyberchondriac.
CYBERCHONDRIAC n. one suffering from CYBERCHONDRIA.
CYPROHEPTADINEScyproheptadines n. Plural of cyproheptadine.
CYPROHEPTADINE n. a powerful antihistamine drug used to treat allergies.
DACTYLOGRAPHERSDACTYLOGRAPHER n. one who studies fingerprints.
DACTYLOGRAPHIESDACTYLOGRAPHY n. the study of fingerprints as a means of identification.
DERMATOGLYPHICSdermatoglyphics n. The patterns of loops, arches and whorls on the skin of the fingers and feet.
dermatoglyphics n. The study of such patterns.
DERMATOGLYPHIC n. a ridge pattern of skin on the inner surface of the hands and feet.
HETERODACTYLOUSheterodactylous adj. (Zoology) Having the first and second toes turned backward, as in the trogons.
HETERODACTYLOUS adj. having the first and second toes turned backwards, as in trogons, and not the first and fourth as in parrots.
HOMOCHLAMYDEOUShomochlamydeous adj. (Botany) Having the perianth not divided into calyx and corolla.
HOMOCHLAMYDEOUS adj. with calyx and corolla similar.
HYDROCEPHALUSEShydrocephaluses n. Plural of hydrocephalus.
HYDROCEPHALUS n. an accumulation of serous fluid within the cranial cavity, also HYDROCEPHALY.
HYDROCORALLINESHYDROCORALLINE n. a member the Hydrozoa, which includes millepores etc.
HYDROEXTRACTORShydroextractors n. Plural of hydroextractor.
HYDROEXTRACTOR n. a drying machine that works centrifugally.
HYPOCHONDRIASEShypochondriases n. Plural of hypochondriasis.
HYPOCHONDRIASIS n. morbid concern about one's health esp. when accompanied by delusions of physical disease.
MONOCHLAMYDEOUSmonochlamydeous adj. (Botany) Having a single floral envelope, that is, a calyx without a corolla, or, possibly, in rare…
MONOCHLAMYDEOUS adj. having a one-whorled perianth.
POLYSACCHARIDESpolysaccharides n. Plural of polysaccharide.
POLYSACCHARIDE n. a glycan, a carbohydrate whose molecules consist of a number of monosaccharide residues bonded together.
PSYCHODELICALLYPSYCHODELIC adv. relating to a state of heightened perception, also PSYCHEDELIC.
SOPHISTICATEDLYsophisticatedly adv. In a sophisticated manner.
SOPHISTICATED adv. SOPHISTICATE, to make artificial or worldly.
SYNECDOCHICALLYsynecdochically adv. In a synecdochical manner.
SYNECDOCHICAL adv. relating to synecdoche, also SYNECDOCHIC.

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: 134 words
  • Scrabble in French: 20 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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