Word.ws English Dictionary

photophil

photophil noun: the phase of a two-phase circadian rhythm associated with light and expenditure of energy.

Noun

photophil

  1. The phase of a two-phase circadian rhythm associated with light and expenditure of energy.
    • It will be seen that light at one phase of the rhythm promoted flowering, and at the other phase inhibited it; thus there was a distinct manifestation of photophil and skotophil phases.1975, Science progress - Volume 62, page 120
    • Short-day effects were seen to result when light was restricted to the photophil, while long-day effects were produced when light encroached into scotophil (figure 1.2).2010, Randy J. Nelson, David L. Denlinger, David E. Somers, Photoperiodism: The Biological Calendar, →ISBN, page 12

Questions about photophil

What does photophil mean?
Photophil means the phase of a two-phase circadian rhythm associated with light and expenditure of energy.
What part of speech is photophil?
Photophil is a noun.

Words near photophil in the dictionary

  1. photopharmacology
  2. photophase
  3. photophases
  4. photophasic
  5. photopheresis
  6. photophil
  7. photophile
  8. photophiles
  9. photophilia
  10. photophilic
  11. photophilous

Source and license

Adapted from Wiktionary: photophil (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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