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There are 12 fifteen-letter words containing H, I, L, P, 2R, S and Y

HYDROXYPROLINEShydroxyprolines n. Plural of hydroxyproline.
HYDROXYPROLINE n. an amino acid.
HYPERADRENALISMhyperadrenalism n. (Pathology) An excessive level of adrenal hormones in the body.
HYPERADRENALISM n. excessive activity of the adrenal gland.
HYPERPOLARISINGhyperpolarising v. Present participle of hyperpolarise.
HYPERPOLARISE v. to increase the difference in electric potential across a cell membrane, also HYPERPOLARIZE.
HYPERVIRULENCESSorry, definition not available.
IRREPREHENSIBLYirreprehensibly adv. In an irreprehensible manner.
IRREPREHENSIBLE adv. beyond blame.
MICROSPOROPHYLLmicrosporophyll n. A leaflike organ that bears one or more microsporangia (contrast megasporophyll or macrosporophyll).
MICROSPOROPHYLL n. a specialised leaf bearing or subtending one or more microsporangia.
PEROXYSULPHURICPEROXYSULPHURIC adj. as in peroxysulphuric acid.
POLYARTHRITIDESpolyarthritides n. Plural of polyarthritis.
POLYARTHRITIS n. arthritis affecting several joints.
POLYARTHRITISESPOLYARTHRITIS n. arthritis affecting several joints.
PREHISTORICALLYprehistorically adv. In a prehistoric manner.
prehistorically adv. Regarding prehistory.
PREHISTORICAL adv. relating to the time before historical records, also PREHISTORIC.
PSYCHROMETRICALpsychrometrical adj. Psychrometric.
PSYCHROMETRICAL adj. relating to measurement by psychrometer, also PSYCHOMETRIC, PSYCHOMETRICAL, PSYCHROMETRIC.
PTERYLOGRAPHIESpterylographies n. Plural of pterylography.
PTERYLOGRAPHY n. a description of pterylae.

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: 62 words
  • Scrabble in French: 5 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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