The action of twisting; spec. in Botany the twisting of the stem of a plant; in Ophthalmology (see quots.).
| 单词 | θ21302 |
| 释义 | the world > plants > part of plant > growth, movement, or curvature of parts > [noun] > torsion or nutation (5) intorsion1760 The action of twisting; spec. in Botany the twisting of the stem of a plant; in Ophthalmology (see quots.). resupination1760 Botany. The inversion of a part of a plant, esp. the flower of an orchid. Cf. resupinate, adj. 1(a). nutation1789 Botany. Bending or directional movement of a plant stem or root, spec. when caused by variation in the rate of growth on different sides of the… torsion1875 Botany. The condition of being twisted spirally. circumnutation1880 A movement characteristic of growing plants, due to increased growth at different points round the axis in succession, whereby the growing part (e.g… |
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