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There are 17 fifteen-letter words containing E, H, R, X and Y

ARCHAEOPTERYXESarchaeopteryxes n. Plural of archaeopteryx.
ARCHAEOPTERYX n. a Jurassic fossil bird of the Archaeopteryx genus, with a long bony tail, sharp-toothed jaws, and wings bearing three clawed digits.
EXOERYTHROCYTICexoerythrocytic adj. Outside of an erythrocyte.
EXOERYTHROCYTIC adj. occurring outside the red blood cells.
HETEROSEXUALITYheterosexuality n. The state of being sexually and romantically attracted primarily or exclusively to persons of the opposite sex.
heterosexuality n. Sexual activity with a person of the opposite sex.
HETEROSEXUALITY n. the state of being heterosexual.
HEXYLRESORCINOLhexylresorcinol n. (Organic chemistry) A hexyl derivative of resorcinol that has anaesthetic, antiseptic and antihelmintic properties.
HEXYLRESORCINOL n. a crystalline phenol used as an antiseptic and anthelmintic.
HYDROEXTRACTORShydroextractors n. Plural of hydroextractor.
HYDROEXTRACTOR n. a drying machine that works centrifugally.
HYDROXYAPATITEShydroxyapatites n. Plural of hydroxyapatite.
HYDROXYAPATITE n. a complex phosphate of calcium that occurs as a mineral and is the chief structural element of vertebrate bone.
HYDROXYBUTYRATEhydroxybutyrate n. (Chemistry) any salt or ester of hydroxybutyric acid, but especially of gamma-hydroxybutyric acid.
HYDROXYBUTYRATE n. as in gamma hydroxybutyrate, a substance that occurs naturally in the brain, used medically as a sedative but also as a recreational drug and alleged aphrodisiac.
HYDROXYLAPATITEhydroxylapatite n. Alternative spelling of hydroxyapatite.
HYDROXYLAPATITE n. a mineral of the apatite group that is rare in the ground but is the principal inorganic constituent of tooth enamel and bone.
HYDROXYPROLINEShydroxyprolines n. Plural of hydroxyproline.
HYDROXYPROLINE n. an amino acid.
HYPEREXCITEMENThyperexcitement n. A state of very high excitement.
HYPEREXCITEMENT n. the state of being hyperexcited.
HYPEREXCRETIONSHYPEREXCRETION n. excessive excretion.
HYPEREXTENSIONShyperextensions n. Plural of hyperextension.
HYPEREXTENSION n. the extension of a joint beyond its normal range.
METHOXYFLURANESmethoxyfluranes n. Plural of methoxyflurane.
METHOXYFLURANE n. a potent general anaesthetic administered as a vapor.
PEROXYSULPHURICPEROXYSULPHURIC adj. as in peroxysulphuric acid.
XENOMORPHICALLYXENOMORPHIC adv. having a form not its own.
XEROGRAPHICALLYxerographically adv. In a xerographic way; by xerography.
XEROGRAPHIC adv. relating to xerography.
XERORADIOGRAPHYxeroradiography n. A method of X-ray photography which uses an electrically charged metal plate instead of film.
XERORADIOGRAPHY n. radiography used esp. in mammographic screening for breast cancer that produces an image using X-rays in a manner similar to the way an image is produced by light in xerography.

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: 168 words
  • Scrabble in French: 6 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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