/sis"teuhr in law'/ , n. , pl. sisters-in-law .
1. the sister of one's husband or wife.
2. the wife of one's brother.
3. the wife of the brother of one's husband or wife.
[ 1400-50; late ME. See SISTER, IN, LAW 1 ]
/sis"teuhr in law'/ , n. , pl. sisters-in-law .
1. the sister of one's husband or wife.
2. the wife of one's brother.
3. the wife of the brother of one's husband or wife.
[ 1400-50; late ME. See SISTER, IN, LAW 1 ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012