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macrospore n. 大胞子 大胞子 macrospore n 1: larger of the two types of spore produced in heterosporous plants; develops in ovule into a female gametophyte [synonym: {megaspore}, {macrospore}] Macrospore \Mac"ro*spore\, n. [Macro- spore.] (Bot.)
One of the specially large spores of certain flowerless plants, as {Selaginella}, etc. [1913 Webster]
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