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There are 15 thirteen-letter words containing H, L, O, P, R, S, U and Y

CHLOROPHYTUMSCHLOROPHYTUM n. any plant of the genus Chlorophytum, grown as pot plants for their long narrow leaves.
HYDROCEPHALUShydrocephalus n. (Medicine) A usually congenital condition in which an abnormal accumulation of fluid in the cerebral…
HYDROCEPHALUS n. an accumulation of serous fluid within the cranial cavity, also HYDROCEPHALY.
HYDROSULPHATEhydrosulphate n. Alternative form of hydrosulfate.
HYDROSULPHATE n. any quaternary acid salt formed by addition of an organic base to sulphuric acid, such as aniline hydrosulphate.
HYDROSULPHIDEhydrosulphide n. (Britain) Alternative spelling of hydrosulfide.
HYDROSULPHIDE n. a compound formed by action of hydrogen sulphide on a hydroxide.
HYDROSULPHITEhydrosulphite n. Alternative spelling of hydrosulfite.
HYDROSULPHITE n. a salt of hydrosulphurous acid; esp. the sodium salt, used as a reagent.
HYPERAROUSALShyperarousals n. Plural of hyperarousal.
HYPERAROUSAL n. a state of extreme arousal.
HYPOSULPHURIChyposulphuric adj. Alternative spelling of hyposulfuric.
HYPOSULPHURIC adj. denoting a kind of acid.
MICROPHYLLOUSmicrophyllous adj. (Phytotomy) Of or having microphyll leaves.
MICROPHYLLOUS adj. having minute leaves.
NEUROSYPHILISneurosyphilis n. (Pathology) A syphilis infection affecting the nervous system.
NEUROSYPHILIS n. a syphilitic infection affecting the central nervous system.
POLYURETHANESpolyurethanes n. Plural of polyurethane.
POLYURETHANE n. any of various polymers used esp. in flexible and rigid foams, elastomers, and resins, also POLYURETHAN.
PYROSULPHATESpyrosulphates n. Plural of pyrosulphate.
PYROSULPHATE n. a salt of sulphur.
PYROSULPHURICpyrosulphuric adj. (Britain) Alternative spelling of pyrosulfuric.
PYROSULPHURIC adj. as in pyrosulphuric acid, a type of acid.
SULPHONYLUREAsulphonylurea n. Alternative spelling of sulfonylurea.
SULPHONYLUREA n. a synthetic compound used to reduce the level of glucose in the blood in diabetes mellitus.
SULPHUREOUSLYsulphureously adv. Archaic form of sulfurously.
SULPHUREOUS adv. pertaining to or like sulphur, also SULFUREOUS.
UPRIGHTEOUSLYuprighteously adv. In an uprighteous or just manner.
UPRIGHTEOUSLY adv. (Shakespeare) with moral right.

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: 64 words
  • Scrabble in French: 8 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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