photonegative
/ˌfoʊtoʊˈnɛɡətɪv/
adjective
- Describing an organism or cell that moves away from or avoids light.
- In the experiment, the photonegative cells gathered in the shaded part of the dish.
- Some bacteria are photonegative and will move into dark areas.
- The photonegative response of the worm helps it stay underground during the day.
Antonyms