a rounded, pore-like aperture at either pole of a pollen grain.

listen to the pronunciation of a rounded, pore-like aperture at either pole of a pollen grain.
Englisch - Englisch

Definition von a rounded, pore-like aperture at either pole of a pollen grain. im Englisch Englisch wörterbuch

A rounded, pore-like aperture at either pole of a pollen grain.
ulcus