Found 2 items, similar to ostiole.
English → English (WordNet) Definition: ostiole ostiole n : a small pore especially one in the reproductive bodies of certain algae and fungi through which spores pass
English → English (gcide) Definition: Ostiole Ostiole \Os"ti*ole\, n. [L. ostiolum a little door, dim. of ostium a door: cf. F. ostiole.] (Bot.) (a) The exterior opening of a stomate. See Stomate. (b) Any small orifice. [1913 Webster]