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There are 19 twelve-letter words containing H, I, O, P, 2R, T and Y

COPYRIGHTERScopyrighters n. Plural of copyrighter.
COPYRIGHTER n. one who copyrights.
CRYPTORCHIDScryptorchids n. Plural of cryptorchid.
CRYPTORCHID n. a male human or animal in whom one or both testes fail to descend into the scrotum.
CRYPTORCHISMcryptorchism n. The failure of one or both testes to descend into the scrotum.
CRYPTORCHISM n. a medical condition in which the testes fail to descend, also CRYPTORCHIDISM.
ERYTHROPENIAerythropenia n. A decrease in the number of erythrocytes, associated with anemia.
ERYTHROPENIA n. diminution below the normal of the number of red cells in the blood.
ERYTHROPSIASERYTHROPSIA n. a defect of vision in which objects appear red.
HYDROTROPISMhydrotropism n. (Biology) The movement of a plant (or other organism) in response to water, either towards or away from water.
HYDROTROPISM n. growth in the direction of water.
HYPERTHYROIDhyperthyroid adj. Of or pertaining to hyperthyroidism.
HYPERTHYROID n. one affected with hyperthyroidism.
HYPERTROPHIChypertrophic adj. Of, pertaining to, or exhibiting hypertrophy.
HYPERTROPHIC adj. grown to an abnormal size, also HYPERTROPHICAL.
PARATHYROIDSparathyroids n. Plural of parathyroid.
PARATHYROID n. such a gland.
PHRONTISTERYphrontistery n. A place for thinking.
phrontistery n. (Humorous) The toilet; the lavatory.
phrontistery n. An establishment devoted to education or study.
PRAISEWORTHYpraiseworthy adj. Meriting praise; worthy of high praise.
praise-worthy adj. Archaic form of praiseworthy.
PRAISEWORTHY adj. worthy of praise.
PROTOHISTORYprotohistory n. The period between prehistory and history, during which a culture or civilization has not yet developed…
PROTOHISTORY n. the study of human beings in the times that immediately antedate recorded history.
PYRITOHEDRALpyritohedral adj. Having the shape of pyrites.
pyritohedral adj. (Mathematics) Having the shape of a pyritohedron.
PYRITOHEDRAL adj. of or like a pyritohedron, a pentagonal dodecahedron.
PYRITOHEDRONpyritohedron n. (Mathematics) An irregular dodecahedron, the faces of which are identical but irregular pentagons.
pyritohedron n. (Mineralogy) The shape of one of the crystal habits of pyrite.
PYRITOHEDRON n. a pentagonal dodecahedron.
PYROMORPHITEpyromorphite n. (Mineralogy) A yellowish-green mineral, a mixed phosphate and chloride of lead with the chemical formula…
PYROMORPHITE n. a green, brown, or yellow lead ore.
RADIOTHERAPYradiotherapy n. The therapeutic use of ionizing radiation, almost exclusively used for the treatment of malignant disease.
RADIOTHERAPY n. treatment by radiation.
THYROTROPHICthyrotrophic adj. That stimulates the thyroid gland.
thyrotrophic adj. Of or pertaining to thyrotropism.
THYROTROPHIC adj. exerting or characterized by a direct influence on the secretory activity of the thyroid gland, also THYROTROPIC.
THYROTROPHINthyrotrophin n. Alternative form of thyrotropin.
THYROTROPHIN n. a hormone, produced in the anterior lobe of the pituitary gland, which stimulates the thyroid, also THYROTROPIN.
THYROTROPINSthyrotropins n. Plural of thyrotropin.
THYROTROPIN n. a hormone, produced in the anterior lobe of the pituitary gland, which stimulates the thyroid, also THYROTROPHIN.

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: 70 words
  • Scrabble in French: 7 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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