micropyle

About 0.06 uses per million words.

Meaning

1. noun In seed-bearing plants, a small opening in the integuments of the ovule through which sperm are able to access the ovum.
2. noun The hilum of an ovum at the point of attachment to the ovary; any opening in the coverings of an ovum by which spermatozoa may find entrance.

Similar words

funnel micropile ovule porogamy mesosperm endostome apical germ pore exostome endoaperture ostiole

Often followed by

is and of in or at area end to

Word family

micropylar micropyles