Definition of paraheliotropism in English:

paraheliotropism

noun ˌparəhiːlɪə(ʊ)ˈtrəʊpɪz(ə)mˌparəhiːlɪˈɒtrəpɪz(ə)m

Botany

A type of tropism in which a plant's leaves move to reduce injuriously intense illumination, usually by keeping their blades parallel to the light rays.

Origin

Late 19th century; earliest use found in Charles Darwin (1809–1882), naturalist, geologist, and originator of the theory of natural selection. From para- + heliotropism, probably after paraheliotropic.

Definition of paraheliotropism in US English:

paraheliotropism

noun

Botany

A type of tropism in which a plant's leaves move to reduce injuriously intense illumination, usually by keeping their blades parallel to the light rays.

单词	paraheliotropism
释义	Definition of paraheliotropism in English: paraheliotropism noun ˌparəhiːlɪə(ʊ)ˈtrəʊpɪz(ə)mˌparəhiːlɪˈɒtrəpɪz(ə)m Botany A type of tropism in which a plant's leaves move to reduce injuriously intense illumination, usually by keeping their blades parallel to the light rays. Origin Late 19th century; earliest use found in Charles Darwin (1809–1882), naturalist, geologist, and originator of the theory of natural selection. From para- + heliotropism, probably after paraheliotropic. Definition of paraheliotropism in US English: paraheliotropism noun Botany A type of tropism in which a plant's leaves move to reduce injuriously intense illumination, usually by keeping their blades parallel to the light rays. Origin Late 19th century; earliest use found in Charles Darwin (1809–1882), naturalist, geologist, and originator of the theory of natural selection. From para- + heliotropism, probably after paraheliotropic.
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