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micropyle

Syllabification: (mi·cro·pyle)

Pronunciation: /ˈmīkrəˌpīl/

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.
a small opening in the egg of a fish, insect, etc., through which spermatozoa can enter.