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micropyle 卵孔; 珠孔 卵孔; 珠孔 micropyle n 1: minute opening in the wall of an ovule through which the pollen tube enters Micropyle \Mi"cro*pyle\, n. [Micro- Gr. ? gate, orifice: cf.
F. micropyle.] (Biol.) (a) An opening in the membranes surrounding the ovum, by which nutrition is assisted and the entrance of the spermatozoa permitted. (b) An opening in the outer coat of a seed, through which the fecundating pollen enters the ovule. -- {Mi*crop"y*lar}, a. [1913 Webster]
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