noun
: a pore, pit, or thin area in the outer wall of a spore or pollen grain through which the germ tube or pollen tube makes its exit on germination
noun
: a pore, pit, or thin area in the outer wall of a spore or pollen grain through which the germ tube or pollen tube makes its exit on germination
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012