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单词 orthotropous
释义

orthotropous

/ôrˈTHätrəpəs /
adjective Botany
(Of a plant ovule) having the nucleus straight, i.e., not inverted, so that the micropyle is at the end opposite the base.The ovary of macadamia contains two orthotropous ovules at anthesis.
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更新时间:2024/9/20 8:03:22