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单词 hypocotyl
释义

WordReference Random House Unabridged Dictionary of American English © 2024
hy•po•cot•yl  (hī′pə kot′l),USA pronunciation n. [Bot.]
  1. Plant Biologythe part of a plant embryo directly below the cotyledons, forming a connection with the radicle. See diag. under cotyledon. 
  • hypo- + cotyl(edon) 1875–80
hy′po•cot′y•lous, adj. 

Collins Concise English Dictionary © HarperCollins Publishers::
hypocotyl /ˌhaɪpəˈkɒtɪl/ n
  1. the part of an embryo plant between the cotyledons and the radicle
Etymology: 19th Century: from hypo- + cotyl( edon)
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更新时间：2025/7/23 15:22:45