Definition of photoprotein in English:

photoprotein

noun

Biochemistry
  • A protein active in the emission of light by a living creature.

    • ‘Indeed, the new photoprotein is chemically related to the rhodopsin family.’
    • ‘Further surveys in the oceans from Antarctica to Hawaii revealed that variants of the photoprotein exist virtually everywhere, in varying colors.’

Pronunciation:

photoprotein

/ˌfəʊtəʊˈprəʊtiːn/