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There are 18 fifteen-letter words containing E, I, O, 2P, 2R and Y

CRYOPRECIPITATEcryoprecipitate n. A frozen blood product prepared from plasma.
cryoprecipitate v. To precipitate at low temperatures.
CRYOPRECIPITATE n. a precipitate, e.g. from blood plasma, produced by freezing and thawing under controlled conditions.
HEMATOPORPHYRINhematoporphyrin n. (Biochemistry) The porphyrin portion of heme (minus the iron atom).
HEMATOPORPHYRIN n. any of several porphyrins that are hydrated derivatives of protoporphyrins.
HYPERMETROPICALhypermetropical adj. Synonym of hypermetropic.
HYPERMETROPICAL adj. longsighted, also HYPERMETROPIC.
HYPERPOLARISINGhyperpolarising v. Present participle of hyperpolarise.
HYPERPOLARISE v. to increase the difference in electric potential across a cell membrane, also HYPERPOLARIZE.
HYPERPOLARIZINGhyperpolarizing v. Present participle of hyperpolarize.
HYPERPOLARIZE v. to produce an increase in potential difference across a biological membrane, also HYPERPOLARISE.
HYPERPRODUCTIONhyperproduction n. Excessive production.
HYPERPRODUCTION n. excessive production.
HYPERPRODUCTIVEhyperproductive adj. Exceptionally productive.
HYPERRESPONSIVEhyperresponsive adj. Involving an abnormally high degree of responsiveness.
HYPERRESPONSIVE adj. excessively responsive.
INAPPROPRIATELYinappropriately adv. In an inappropriate manner.
INAPPROPRIATE adv. not appropriate, also UNAPPROPRIATE.
PEROXYSULPHURICPEROXYSULPHURIC adj. as in peroxysulphuric acid.
PORPHYROGENITESporphyrogenites n. Plural of porphyrogenite.
PORPHYROGENITE n. a Byzantine emperor's son, born in the purple.
PROPORTIONATELYproportionately adv. In a proportionate manner; with due proportion; proportionally.
PROPORTIONATE adv. in proportion.
PROPRIETORIALLYproprietorially adv. In a proprietorial manner; like an owner.
PROPRIETORIAL adv. relating to ownership.
PTERYLOGRAPHIESpterylographies n. Plural of pterylography.
PTERYLOGRAPHY n. a description of pterylae.
PYRETOTHERAPIESPYRETOTHERAPY n. medical treatment by causing fever.
RHOMBPORPHYRIESRHOMBPORPHYRY n. an intermediate, moderately fine-grained igneous rock with feldspar inclusions, also RHOMBENPORPHYR, RHOMBENPORPHYRY.
RHYPAROGRAPHIESRHYPAROGRAPHY n. genre or still-life pictures of sordid subjects.
SEMIPORNOGRAPHYsemipornography n. Material that is partly or somewhat pornographic.
SEMIPORNOGRAPHY n. material approaching the pornographic.

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: 106 words
  • Scrabble in French: 25 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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