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单词
megaspore
释义
WordReference Random House Unabridged Dictionary of American English © 2024
meg•a•spore
(meg
′
ə spôr′, -spōr′),
USA pronunciation
n.
[
Bot.
]
Plant Biology
the larger of the two kinds of spores characteristically produced by seed plants and a few fern allies, developing into a female gametophyte. Cf.
microspore.
Botany
the embryo sac of a flowering plant.
Also called
macrospore.
1885–90;
mega
- +
spore
meg•a•spor•ic
(meg′ə spôr
′
ik, -spor
′
-),
USA pronunciation
adj.
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更新时间：2026/6/22 17:12:53