(a) (usu small) living being with parts that work together （通常指微小的）生物, 有机体: study the minute organisms in water 研究水中的微生物. (b) individual plant or animal 生物体. 
(fml 文) system made up of parts which are dependent on each other 有机体系; 有机组织: The business is a large, complicated organism. 该企业是一个大而复杂的组织.