| 单词 | pollen grain |
| 释义 | > as lemmaspollen grain pollen grain n. Botany a microspore of a seed plant, consisting of one or more cells surrounded by a two-layered wall, and containing (in life) a developing male gamete. ΘΚΠ the world > plants > part of plant > reproductive part(s) > flower or part containing reproductive organs > [noun] > parts of > stamen or pistil > pollen and related parts sandarac1623 globulet1671 powder1672 bread1682 farina1721 pollen1723 father-dust1728 rough wax1744 yellow rain1755 dust1776 fovilla1793 anther dust1797 pollen mass1828 pollen tube1830 intextine1835 pollen grain1835 pollen granule1835 exine1839 exintine1839 intine1839 pollinium1849 sulphur shower1854 pollinic mass1857 pollen chamber1863 smoke1868 pollen sac1872 pollinarium1881 sulphur rain1882 pollinic chamber1885 perine1895 pollen content1926 sculpturing1943 monad1947 nexine1948 sexine1948 1835 J. S. Henslow Princ. Bot. §262 The inner membrane of the pollen grain. 1914 F. E. Fritsch & E. J. Salisbury Introd. Study Plants xix. 241 In a more mature anther the pollen grains..can be recognised as a powdery mass within each pollen-sac. 1993 Sci. Amer. Oct. 52/3 Koopman's equation applies not only to ships but also to pollen grains in the hunt for stigmas. < as lemmas |
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