heliotaxis

English

Etymology

helio- +‎ taxis

Noun

heliotaxis (uncountable)

  1. (biology) Phototaxis related to the sun.
    1. Movement of an organism toward sunlight; positive heliotaxis.
    2. Movement of an organism away from sunlight; negative heliotaxis.
      • 1903, William Morton Wheeler, “Some Notes on the Habits of Cerapachs Augustae”, in Psyche, 10(325-326), page 206:
        Pronounced negative heliotaxis, evidently depending on some photodermatic sense, was apparent when the ants were exposed to the sun...
This article is issued from Wiktionary. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.