Found 2 items, similar to micropyle.
English → English (WordNet) Definition: micropyle micropyle n : minute opening in the wall of an ovule through which the pollen tube enters
English → English (gcide) Definition: Micropyle 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]