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There are 5 thirteen-letter words beginning with PHOTOCH

PHOTOCHEMICALphotochemical adj. (Chemistry) of, relating to, or produced by photochemistry or by photochemical reactions.
photochemical n. Any chemical compound (such as silver halides) used in photography.
PHOTOCHEMICAL adj. of, relating to, or resulting from the chemical action of radiant energy and esp. light.
PHOTOCHEMISTSphotochemists n. Plural of photochemist.
PHOTOCHEMIST n. a practitioner of photochemistry.
PHOTOCHROMICSphotochromics n. The study of photochromism.
PHOTOCHROMIC n. a photochromic material.
PHOTOCHROMIESphotochromies n. Plural of photochromy.
PHOTOCHROMY n. a former process of colour photography.
PHOTOCHROMISMphotochromism n. The reversible transformation of the optical properties of a material when exposed to electromagnetic…
PHOTOCHROMISM n. the property of changing color on exposure to light or other radiation and of reverting to original color immediately the light or radiation source is removed.

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: 7 words
  • Scrabble in French: 1 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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