phototropism
Pronunciation: /ˌfəʊtə(ʊ)ˈtrəʊpɪz(ə)m, fəʊˈtɒtrəˌpɪz(ə)m/
Definition of phototropism
noun
- the orientation of a plant or other organism in response to light, either towards the source of light ( positive phototropism) or away from it ( negative phototropism). Compare with heliotropism, phototaxis.
