from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Having a tendency to move in response to light. An animal or microbe that is positively phototropic will move toward light. One that is negatively phototropic will move away from light.
from the GNU version of the Collaborative International Dictionary of English
- adj. of or pertaining to phototropism; exhibiting phototropism; same as heliotropic.
from The Century Dictionary and Cyclopedia
- Of, pertaining to, or exhibiting phototropism or phototropy.
Sorry, no etymologies found.