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There are 18 twelve-letter words containing H, I, N, 2O, P and 2R

CHLOROPICRINchloropicrin n. (Organic chemistry) The chlorinated derivative of nitromethane CCl3NO2 that is used as a pesticide and…
CHLOROPICRIN n. a colorless liquid that causes tears and vomiting and is used esp. as a soil fumigant, also CHLORPICRIN.
CORONERSHIPScoronerships n. Plural of coronership.
CORONERSHIP n. the office of coroner.
GOVERNORSHIPgovernorship n. The office, or the term of a governor.
GOVERNORSHIP n. the office of governor.
ICONOGRAPHERiconographer n. One who creates (religious) icons.
ICONOGRAPHER n. a maker of figures or drawings esp. of a conventional type.
NECROTROPHICnecrotrophic adj. (Biology) Describing a parasite that kills its host, then feeds on the dead matter.
NECROTROPHIC adj. of or like a necrotroph, a parasitic organism that kills the living cells of its host and then feeds on the dead material.
NEUROTROPHICneurotrophic adj. Of or relating to neurotrophy.
NEUROTROPHIC adj. relating to the nutrition of the nervous system, or to nutritional changes influenced by the nervous system.
ORNITHOMORPHornithomorph n. A figure in ancient art resembling a bird.
ORNITHOMORPH n. a figure or design in the form of a bird.
ORNITHOPTERSornithopters n. Plural of ornithopter.
ORNITHOPTER n. a birdlike archaic flying machine.
PORNOGRAPHICpornographic adj. Containing an explicit depiction of sexual activity.
PORNOGRAPHIC adj. relating to pornography.
PORPHYROPSINporphyropsin n. Any of a group of purple carotenoid pigments, similar to rhodopsin, in the retinas of some fish.
PORPHYROPSIN n. a purple pigment in the retinal rods of freshwater fishes that resembles rhodopsin.
PROCHRONISMSprochronisms n. Plural of prochronism.
PROCHRONISM n. assigning a date to an event earlier than actual.
PROTHROMBINSprothrombins n. Plural of prothrombin.
PROTHROMBIN n. a protein-like substance present in blood plasma.
PROTOTHERIANprototherian adj. Belonging or pertaining to the subclass Prototheria of monotremes.
prototherian n. Any of the egg-laying mammals of the subclass Prototheria; a monotreme.
PROTOTHERIAN adj. pertaining to a member of Prototheria, which comprises the order Monotremata and related fossil forms.
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.
ROTOGRAPHINGrotographing v. Present participle of rotograph.
ROTOGRAPH v. to make a photograph by laying negative on sensitive paper.
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.
TRICHLORPHONtrichlorphon n. Alternative form of trichlorfon.
TRICHLORPHON n. a crystalline compound used as an insecticide, also TRICHLORFON.

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: 60 words
  • Scrabble in French: 11 words
  • Scrabble in Spanish: 5 words
  • Scrabble in Italian: 6 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 11 words


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