请输入您要查询的英文单词：
单词
calyptrogen
释义
calyptrogen
/keuh lip"treuh jeuhn/
,
n. Bot.
the histogen layer that develops into the root cap.
[
1880-85;
calyptro-
(comb. form of CALYPTRA) + -GEN
]
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更新时间：2025/9/22 9:16:11