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单词 rootcap
释义

WordReference Random House Unabridged Dictionary of American English © 2024
root•cap  (ro̅o̅tkap′, rŏŏt-),USA pronunciation n. [Bot.]
  1. Plant Biologythe loose mass of epidermal cells covering the apex of most roots, serving to protect the meristematic cells behind it.
  • root1 + cap1 1875–80

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