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There are 16 fifteen-letter words containing H, N, O, P, 2R, T and Y

ANTIPORNOGRAPHYantipornography adj. Opposed to the distribution and consumption of pornography.
ANTIPORNOGRAPHY adj. opposed to pornography.
ERYTHROPOIETINSerythropoietins n. Plural of erythropoietin.
ERYTHROPOIETIN n. a glycoprotein hormone that stimulates the production of red blood cells by stem cells in bone marrow.
HEMATOPORPHYRINhematoporphyrin n. (Biochemistry) The porphyrin portion of heme (minus the iron atom).
HEMATOPORPHYRIN n. any of several porphyrins that are hydrated derivatives of protoporphyrins.
HYPERCORRECTIONhypercorrection n. (Linguistics) Nonstandard language use that results from the over-application of a perceived prescriptive rule.
hypercorrection n. (Linguistics) A nonstandard form so used.
HYPERCORRECTION n. a grammatical, usage or pronunciation mistake made by 'correcting' something that's right to begin with.
HYPEREXCRETIONSHYPEREXCRETION n. excessive excretion.
HYPERMODERNISTShypermodernists n. Plural of hypermodernist.
HYPERMODERNIST n. a practitioner of a hypermodernist style in art.
HYPERPRODUCTIONhyperproduction n. Excessive production.
HYPERPRODUCTION n. excessive production.
HYPERSECRETIONShypersecretions n. Plural of hypersecretion.
HYPERSECRETION n. excessive secretion.
NEUROPSYCHIATRYneuropsychiatry n. (Medicine) The branch of medicine dealing with disorders that have both neurological and psychiatric features.
NEUROPSYCHIATRY n. a branch of medicine concerned with both neurology and psychiatry.
PORPHYROGENITESporphyrogenites n. Plural of porphyrogenite.
PORPHYROGENITE n. a Byzantine emperor's son, born in the purple.
PROTOPORPHYRINSprotoporphyrins n. Plural of protoporphyrin.
PROTOPORPHYRIN n. metal-free porphyrin derived from blood hemin.
ROENTGENOGRAPHYroentgenography n. Radiography; The production of roentgenograms.
ROENTGENOGRAPHY n. radiography.
RONTGENOTHERAPYRONTGENOTHERAPY n. treatment by X-rays.
SUPERHETERODYNEsuperheterodyne adj. (Electronics) Pertaining to a technique used in radio and television receivers to tune to a particular…
superheterodyne n. A receiver of this kind.
SUPERHETERODYNE n. applied to radio reception in which oscillations of slightly different frequency are imposed on the received oscillations, producing beats of a frequency above audio-frequency which are easily amplified.
THREEPENNYWORTHthreepennyworth n. (Dated) A portion worth threepence.
THREEPENNYWORTH n. goods to the value of threepence, also THREEPENCEWORTH.
ULTRASONOGRAPHYultrasonography n. (Medicine) The use of ultrasound to produce diagnostic images of the internal organs of the body, or of a foetus.
ultrasonography n. The use of ultrasound to form images of underwater structures.
ULTRASONOGRAPHY n. the use of ultrasound.

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: 118 words
  • Scrabble in French: 20 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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