Brother-in-law(redirected from brothers-in-law)
Also found in: Dictionary, Thesaurus.
BROTHER-IN-LAW, domestic relat. The brother of a wife, or the husband of a sister. There is no relationship, in the former case, between the husband and the brother-in-law, nor in the latter, between the brother and the husband of the sister; there is only affinity between them. See Vaughan's Rep. 302, 329.