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There are 16 twelve-letter words containing I, 3O, 2P, R and T

APOGEOTROPICapogeotropic adj. Opposite to geotropic; thus…
APOGEOTROPIC adj. bending up or away from the ground.
COPROPRIETORcoproprietor n. A joint proprietor; one who owns a business in conjunction with others.
COPROPRIETOR n. a joint proprietor.
MORPHOTROPICmorphotropic adj. (Crystallography) Of or pertaining to morphotropism.
morphotropic adj. Describing a phase transition due to a change in composition.
morphotropic adj. Describing the phase boundary between tetragonal and rhombohedral regions of a ferroelectric.
PHOTOCOPIERSphotocopiers n. Plural of photocopier.
PHOTOCOPIER n. a machine for copying.
PHOTOPERIODSphotoperiods n. Plural of photoperiod.
PHOTOPERIOD n. the period during every 24 hours when an organism is exposed to daylight.
PHOTOTROPHICphototrophic adj. (Biology) That exhibits phototrophy.
PHOTOTROPHIC adj. relating to phototropism, movement directed by light.
PHOTOTROPIESPHOTOTROPY n. change of colour due to wavelength of incident light.
PHOTOTROPISMphototropism n. (Biology) The movement of a plant towards or away from light.
PHOTOTROPISM n. movement directed by light.
PROCTOSCOPICproctoscopic adj. Relating to proctoscopy.
proctoscopic adj. By means of a proctoscope.
PROCTOSCOPIC adj. relating to proctoscopy.
PROPORTIONALproportional adj. (Mathematics) At a constant ratio (to). Two magnitudes (numbers) are said to be proportional if the…
proportional adj. (Chiefly US) In proportion (to), proportionate.
proportional adj. Of a typeface, having characters with natural (non-uniform) width (in contrast to monospace typefaces).
PROPORTIONEDproportioned adj. Having a proportion.
proportioned v. Simple past tense and past participle of proportion.
PROPORTION v. to adjust (a part or thing) in size relative to other parts or things.
PROPOSITIONSpropositions n. Plural of proposition.
propositions v. Third-person singular simple present indicative form of proposition.
PROPOSITION v. to make a proposal to.
PROTOMORPHICprotomorphic adj. (Biology) Having the most primitive character; in the earliest form.
PROTOMORPHIC adj. primordial; primitive.
PROTOTROPHICprototrophic adj. (Biology) Of or pertaining to a prototroph or to prototrophy.
PROTOTROPHIC adj. of bacteria, feeding directly on uncombined elements.
TROPHOTROPICtrophotropic adj. Relating to trophotropy.
TROPHOTROPIC adj. related to trophotropism, direction of growth by nutritional factors.
TROPOPHILOUStropophilous adj. (Biology) Adapted to seasonal changes.
TROPOPHILOUS adj. flourishing in seasonal extremes of climate.

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: 41 words
  • Scrabble in French: 7 words
  • Scrabble in Spanish: 6 words
  • Scrabble in Italian: 23 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 40 words


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