tropism
🇺🇸
/ˈtrəʊpɪzəm/
🇬🇧
/ˈtrəʊpɪzəm/
A growth or movement of an organism in response to a stimulus, like light or gravity.
The tropism of the vine towards the light was evident as it climbed the trellis.
つる植物が光に向かう屈性は、トレリスを登る際に明らかでした。