heliotropism
heliotropism
[ˌhiːlɪə(ʊ)ˈtrəʊpɪz(ə)m]
noun
heliotropic
adjective
语源
[ˌhiːlɪə(ʊ)ˈtrəʊpɪz(ə)m]
noun
- [mass noun](Botany)the directional growth of a plant in response to sunlight
(植)（植物的）向光性，向日性。 比较 phototropism
■(Zoology)the tendency of an animal to move towards light
(动)（动物的）向光性
heliotropic
adjective
语源
- mid 19th cent.: from helio- + Greek -tropos 'turning' + -ism
考试词汇表
