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There are 19 fifteen-letter words containing C, E, H, L, O, S, U and Y

BRACHYCEPHALOUSbrachycephalous adj. Relating to brachycephaly; brachycephalic.
BRACHYCEPHALOUS adj. short-headed, esp. having a skull whose breadth is 80 per cent or more of its length.
COLLENCHYMATOUScollenchymatous adj. Relating to collenchyma.
COLLENCHYMATOUS adj. relating to collenchyma.
ETHNOMUSICOLOGYethnomusicology n. (Music) The study of music and culture; the study of music as it relates to its cultural context.
ETHNOMUSICOLOGY n. the study of comparative musical systems.
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.
HYDROCELLULOSESHYDROCELLULOSE n. a gelatinous material obtained by hydration of cellulose, used in papermaking, etc.
HYDROCEPHALUSEShydrocephaluses n. Plural of hydrocephalus.
HYDROCEPHALUS n. an accumulation of serous fluid within the cranial cavity, also HYDROCEPHALY.
LEUCOCYTHAEMIASleucocythaemias n. Plural of leucocythaemia.
LEUCOCYTHAEMIA n. leukaemia.
METHYLCELLULOSEmethylcellulose n. (Organic chemistry) A white powdery substance, obtained by the methylation of cellulose, that swells…
methyl␣cellulose n. Alternative form of E461.
METHYLCELLULOSE n. any of various gummy products of cellulose methylation that swell in water and are used esp. as emulsifiers, adhesives, thickeners, and bulk laxatives.
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.
NEUROPSYCHOLOGYneuropsychology n. A branch of neurology and of clinical psychology that investigates the physiological basis of psychological processes.
neuropsychology n. The facts uncovered thereby, or the body of knowledge thus produced.
NEUROPSYCHOLOGY n. the study of the relation between brain and behaviour.
NUCLEOSYNTHESESnucleosyntheses n. Plural of nucleosynthesis.
NUCLEOSYNTHESIS n. the production of a chemical element from simpler nuclei, as of hydrogen, esp. in a star.
NUCLEOSYNTHESISnucleosynthesis n. (Physics, astronomy) Any of several processes that lead to the synthesis of heavier atomic nuclei.
NUCLEOSYNTHESIS n. the production of a chemical element from simpler nuclei, as of hydrogen, esp. in a star.
NUCLEOSYNTHETICnucleosynthetic adj. Of or pertaining to nucleosynthesis.
NUCLEOSYNTHETIC adj. relating to nucleosynthesis.
PEROXYSULPHURICPEROXYSULPHURIC adj. as in peroxysulphuric acid.
PSYCHOSEXUALITYpsychosexuality n. The psychological aspects of sexuality.
PSYCHOSEXUALITY n. the psychic factors of sex.
SCEUOPHYLACIUMSSCEUOPHYLACIUM n. a sacristy.
SUCCINYLCHOLINEsuccinylcholine n. (Pharmacology) US and UK form of suxamethonium.
SUCCINYLCHOLINE n. a basic compound that is used intravenously chiefly in the form of a hydrated chloride as a muscle relaxant in surgery.
ZYGOPHYLLACEOUSzygophyllaceous adj. (Botany) Of or relating to the family Zygophyllaceae of bean-capers, caltrops, and related plants.
ZYGOPHYLLACEOUS adj. belonging to the Zygophyllaceae, the bean caper family.

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: 92 words
  • Scrabble in French: 9 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: 1 word


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