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There are 4 thirteen-letter words beginning with PYRI

PYRIDOXAMINESpyridoxamines n. Plural of pyridoxamine.
PYRIDOXAMINE n. a crystalline amine of the vitamin B6 group.
PYRIMETHAMINEpyrimethamine n. (Pharmacology) A synthetic compound derived from pyrimidine, acting as a folic acid antagonist and used…
PYRIMETHAMINE n. a drug used in the treatment of malaria and toxoplasmosis.
PYRITHIAMINESPYRITHIAMINE n. an antivitamin causing thiamine (vitamin B1) deficiency.
PYRITOHEDRONSpyritohedrons n. Plural of pyritohedron.
PYRITOHEDRON n. a pentagonal dodecahedron.

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 1Word.ws and WikWik.org.

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See this list for:

  • English Wiktionary: 14 words
  • Scrabble in French: no word
  • Scrabble in Spanish: no word
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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