The head of a convent; an abbess.

A goddess, often portrayed as the Earth Mother, who serves as a general fertility deity, the bountiful embodiment of the earth.

(nonstandard) plural of mother-in-law

The hard pearly inner layer of certain mollusk shells; nacre. / A butterfly of the genus Salamis.

Made from or looking like mother-of-pearl; iridescent or pearly.

A woman who gives birth to a child not her own, with the intent to give that child up to at least one of the biological parents once it is born.

The language one first learned; the language one grew up with; one's native language. / The language spoken by one’s ancestors.

A woman who has adopted a child, as opposed to a biological mother.

Alternative form of motherfucker

The woman from whom one inherits half of one's DNA and who is the source of one's mitochondrial DNA.