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coleoptile
释义
WordReference Random House Unabridged Dictionary of American English © 2024
co•le•op•tile
(kō′lē op
′
til, kol′ē-),
USA pronunciation
n.
[
Bot.
]
Botany
(in grasses) the first leaf above the ground, forming a sheath around the stem tip.
Greek
koleó
(
n
) sheath, scabbard +
ptílon
soft feathers, down
Neo-Latin
coleoptilum
1865–70
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更新时间:2026/8/14 4:19:20