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单词
calyptrogen
释义
WordReference Random House Unabridged Dictionary of American English © 2024
ca•lyp•tro•gen
(kə lip
′
trə jən),
USA pronunciation
n.
[
Bot.
]
Botany
the histogen layer that develops into the root cap.
calyptro-
(combining form of
calyptra
) + -
gen
1880–85
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更新时间:2025/7/3 7:20:25