n. [ Prop. a Per. adj. meaning, Indian, Hindoo. ] The name given by Europeans to that form of the Hindustani language which is chiefly spoken by native Hindus. In employs the Devanagari character, in which Sanskrit is written. Whitworth. [ 1913 Webster ]
a. (Chem.) Of, pertaining to, or designating, a sulphonic acid obtained, as a blue solution, by dissolving indigo in sulphuric acid; -- formerly called also