Definition of phytochrome in English:

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Pronunciation: /ˈfīdōˌkrōm/


A blue-green pigment found in many plants, in which it regulates various developmental processes.
Example sentences
  • This macroscopically observable reaction was identified to be coupled with light-induced processes of the photoreceptor phytochrome.
  • This is the opposite of the situation in higher plants, where red light activates and far-red light inactivates phytochrome.
  • The plant photoreceptor phytochrome exhibits remarkable structural and functional variabilities in the plant cell.


Late 19th century: from phyto- 'relating to plants' + Greek khrōma 'color'.

For editors and proofreaders

Syllabification: phy·to·chrome

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