Ar-rō'bă, n.

n. [Sp., from Ar. ar-rub or ar-rubu, a fourth part.]

1. A Spanish weight of twenty-five pounds and a half.
2. A Spanish measure containing about three gallons and a half.
3. A wine measure, for oil, containing about two gallons and three fourths.
4. A Portuguese weight of about thirty-two pounds. Simmonds.