Definition of: organicism

(ôr·gan′ə·siz′əm) noun
1. Med. The doctrine that all diseases are caused by specific lesions of one or more organs.
2. Biol. The theory of living processes as the result of the activity of all the organs considered as an autonomous, integrated system.
3. Sociol. The concept of society as an organism, of which beliefs, ideas, customs, etc., are component parts.
—or·gan′i·cist noun