micropylePronunciation: /ˈmʌɪkrə(ʊ)pʌɪl/Definition of micropyle noun Botany a small opening in the surface of an ovule, through which the pollen tube penetrates, often visible as a small pore in the ripe seed. Zoology a small opening in the egg of a fish, insect, etc., through which spermatozoa can enter. Origin: early 19th century: from micro- 'small' + Greek pulē 'gate'micropyle in other Oxford dictionaries Definition of micropyle in the US English dictionary
