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List of 12-letter words containing

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There are 11 twelve-letter words containing N, 2O, 2P, S and Y

HYPNOPHOBIASHYPNOPHOBIA n. an irrational fear of sleep.
HYPOPLASTRONhypoplastron n. The third lateral plate in the plastron of turtles.
HYPOPLASTRON n. the plate behind the hyoplastron in a turtle's plastron.
PHONOTYPISTSphonotypists n. Plural of phonotypist.
PHONOTYPIST n. one who practises phonotypy.
PODOPHYLLINSpodophyllins n. Plural of podophyllin.
PODOPHYLLIN n. a cathartic resin obtained from the rhizomes of the Podophyllum genus, also PODOPHYLIN.
POLYISOPRENEpolyisoprene n. (Chemistry) Any polymer whose constituent monomer is isoprene; especially natural, and some synthetic, rubbers.
POLYISOPRENE n. a rubberlike polymer of isoprene.
POLYPHONISTSpolyphonists n. Plural of polyphonist.
POLYPHONIST n. a contrapuntist, one who writes counterpoint.
POLYPROPENESpolypropenes n. Plural of polypropene.
POLYPROPENE n. any of various thermoplastic plastics or fibers that are polymers of propylene, also POLYPROPYLENE.
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.
POSTHYPNOTICposthypnotic adj. After being hypnotized.
POSTHYPNOTIC adj. taking place after hypnosis.
SPHYGMOPHONEsphygmophone n. (Physiology) An electrical instrument for determining by ear the rhythm of the pulse of a person at a distance.
SPHYGMOPHONE n. an instrument for hearing the pulse.
SYNAPOMORPHYsynapomorphy n. (Cladistics) A derived trait that is shared by two or more taxa of shared ancestry.

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: 65 words
  • Scrabble in French: 4 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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