organo-

1. a combining form of Greek origin used, with the meaning “organ (of the body),” “musical instrument,” or as a combining form of organic in the formation of compound words: organology; organosilicon.

combining form

1. (in biology or medicine) indicating an organ or organsorganogenesis
2. (in chemistry) indicating a compound containing an organic grouporganometallic; organosulphur; organophosphate

pref.

1. Organ:organotrophic.
2. Organic:organomercurial.