noun
1. : one of the terminal cells closing the neck of an archegonium until the maturation of the egg cell
2. : the uppermost cell of the antheridium in ferns
noun
1. : one of the terminal cells closing the neck of an archegonium until the maturation of the egg cell
2. : the uppermost cell of the antheridium in ferns
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012