Definition of photo- in English:


Pronunciation: /ˈfəʊtəʊ/

combining form

  • 1Relating to light: photochemical
  • 2Relating to photography: photofit


sense 1 from Greek phōs, phōt- 'light'; sense 2, abbreviation of photography.

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Definition of photo- in:

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Word of the day astrogation
Pronunciation: ˌastrə(ʊ)ˈgeɪʃ(ə)n
(in science fiction) navigation in outer space