| 单词 | primordial meristem |
| 释义 | > as lemmasprimordial meristem primordial meristem n. Botany now rare = promeristem n. at pro- prefix2 1. ΚΠ 1912 S. J. Record Identification of Econ. Woods of United States 11 At the apex of a growing stem is an undifferentiated tissue composed of very thin-walled cells essentially all alike. This tissue is known as the primordial meristem. 1997 Ecology 78 2111/1 Although leaf damage did not affect the presence or absence of a catkin in the next year, primordial meristems in reproductive shoots presumably were weakened. < as lemmas |
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