organo-

Bodily organs; organic chemical compounds.

Either Greek organon, organ, or English organic.

Examples relating to organs include organoleptic (Greek lēptikos, disposed to take), involving the use of the sense organs; organogenesis, the production and development of the organs of an animal or plant; and organotherapy, the treatment of disease with extracts from animal organs, especially glands.

In chemistry, the prefix is used to make names for groups of organic compounds which contain a particular element or group, frequently a metal or other inorganic radical: organochlorine, any of a large group of pesticides and other synthetic organic compounds containing chlorine; organophosphorus, denoting synthetic organic compounds containing phosphorus, especially pesticides and nerve gases; an organometallic compound contains a metal atom bonded to an organic group or groups.