1.A female parent; especially, one of the human race; a woman who has borne a child.
2.That which has produced or nurtured anything; source of birth or origin; generatrix. "Alas! poor country!... it can not Be called our mother, but our grave." "I behold... the solitary majesty of Crete, mother of a religion, it is said, that lived two thousand years."
3.An old woman or matron. (Familiar)
4.The female superior or head of a religious house, as an abbess, etc.
5.Hysterical passion; hysteria. (Obs.)