Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
1. barbărum, i, n., v. barbarus, I. A.
2. barbărum, i, n. [barbarus]; in medicine, a plaster applied to raw wounds: optimum ex his (emplastris) est, quod barbarum vocatur, Cels. 5, 19, n. 1; 5. 26, n. 23; Scrib. Comp. 207 (in Scrib. Lang. Comp. l. l. barbăra, ae, f.).