adj. 1.consisting of separate interconnected parts 2.of or relating to or belonging to the plant family Compositae 3.used of color 4.a modified Corinthian style of architecture (a combination of Corinthian and Ionic) composite n. 1.a conceptual whole made up of complicated and related parts 2.considered the most highly evolved dicotyledonous plants, characterized by florets arranged in dense heads that resemble single flowers