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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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fifth wheel
fifth-wheel trailer
fiftieth
fifty
fifty-eight
fifty-eighth
fifty-fifth
fifty-fifty
fifty-first
fifty-five
fifty-four
fifty-four-forty or fight
fifty-fourth
fifty-nine
fifty-ninth
fifty-one
fiftypenny
fifty-second
fifty-seven
fifty-seventh
fifty-six
fifty-sixth
fifty-third
fifty-three
fifty-two
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更新时间:2025/11/27 9:56:43