Meaning & use
Micropyle
Last updated
A small pore or opening in the wall of a plant ovule, or in an insect or fish egg, through which fertilization occurs.
See it in a sentence
Pollen tubes grow toward the micropyle of the ovule to reach and fertilize the egg cell.
In many fish eggs, sperm can enter only through a single tiny micropyle.
A note on using this word
The word comes from Greek roots meaning 'small gate', a fitting description of its function as an entry point for fertilization.
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