A vaccine prepared from several species of Brucella; formerly thought to prevent or cure brucellosis. ... (05 Mar 2000) ... 
(broo-sel´in) a preparation from pooled cultures of the three species of Brucella, used in the diagnosis of brucellosis.
Type: Term Pronunciation: brū-sel′in Definitions: 1. A preparation of antigenic material from several species of Brucella; used in the diagnosis of brucellosis as a skin test similar to that used for tuberculosis.