Heliotaxis

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Phototaxis related to the sun.; Movement of an organism toward sunlight; positive heliotaxis. uncountable
  2. 2
    Phototaxis related to the sun.; Movement of an organism away from sunlight; negative heliotaxis. uncountable

    "Pronounced negative heliotaxis, evidently depending on some photodermatic sense, was apparent when the ants were exposed to the sun..."

Example

More examples

"Pronounced negative heliotaxis, evidently depending on some photodermatic sense, was apparent when the ants were exposed to the sun..."

Etymology

From helio- + taxis.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.