Dictionary
broth•er-in-law
Pronunciation: (bru&thslash;'ur in lô"), [key]—
n.,
—pl. broth•ers-in-law.
1. the brother of one's husband or wife.
2. the husband of one's sister.
3. the husband of one's wife's or husband's sister.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.