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There are 16 fifteen-letter words containing E, H, I, N, 2P and 2R

HEMATOPORPHYRINhematoporphyrin n. (Biochemistry) The porphyrin portion of heme (minus the iron atom).
HEMATOPORPHYRIN n. any of several porphyrins that are hydrated derivatives of protoporphyrins.
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.
HYPERRESPONSIVEhyperresponsive adj. Involving an abnormally high degree of responsiveness.
HYPERRESPONSIVE adj. excessively responsive.
INTERPRETERSHIPinterpretership n. A qualification in interpreting.
interpretership n. The state of being an interpreter.
INTERPRETERSHIP n. the office of interpreter.
NOREPINEPHRINESnorepinephrines n. Plural of norepinephrine.
NOREPINEPHRINE n. (US) a neurotransmitter hormone related to adrenalin, produced by the adrenal glands.
PARTHENOCARPIESPARTHENOCARPY n. fruit production without fertilization.
PERINEPHRITISESPERINEPHRITIS n. inflammation of the perinephrium.
PORPHYROGENITESporphyrogenites n. Plural of porphyrogenite.
PORPHYROGENITE n. a Byzantine emperor's son, born in the purple.
PROBATIONERSHIPprobationership n. The state of being a probationer; novitiate.
PROBATIONERSHIP n. the state of being a probationer.
PROGENITORSHIPSprogenitorships n. Plural of progenitorship.
PROGENITORSHIP n. the state of being a progenitor.
REPHOTOGRAPHINGrephotographing v. Present participle of rephotograph.
REPHOTOGRAPH v. to photograph again.
SEMIPORNOGRAPHYsemipornography n. Material that is partly or somewhat pornographic.
SEMIPORNOGRAPHY n. material approaching the pornographic.
SPORANGIOPHORESsporangiophores n. Plural of sporangiophore.
SPORANGIOPHORE n. a stalk to which sporangia are attached.
WHIPPERSNAPPERSwhippersnappers n. Plural of whippersnapper.
whipper-snappers n. Plural of whipper-snapper.
whipper␣snappers n. Plural of whipper snapper.

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 WikWik.org and 1Word.ws.

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See this list for:

  • English Wiktionary: 103 words
  • Scrabble in French: 23 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: 4 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 1 word


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