heliotaxis

Definitions

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

Examples

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

CEFR level