Also found in: Dictionary, Thesaurus, Medical, Acronyms, Encyclopedia, Wikipedia.

MOTHER-IN-LAW. In Latin socrus. The mother of one's wife, or of one's husband.

A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.
References in periodicals archive ?
Most mother-in-laws are just concerned parents - Bob Cheeseman.
Mother-in-laws can be your worst nightmare, but above all they just love their children - Hercule Chalmers, Wishaw.
Mother-in-laws think that their sons can do no wrong and they never listen to our side of the story!