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1510s, "serving as an organ or instrument," from Latin organicus, from Greek organikos "of or pertaining to an organ, serving as instruments or engines," from organon "instrument" (see organ). Sense of "from organized living beings" is first recorded 1778 (earlier this sense was in organical, mid-15c.). Meaning "free from pesticides and fertilizers" first attested 1942. Organic chemistry is attested from 1831.
organic or·gan·ic (ôr-gān'ĭk)
Of, relating to, or affecting organs or an organ of the body.
Of or designating carbon compounds.
Of, relating to, or derived from living organisms.
Using or produced with fertilizers of animal or vegetable matter, using no synthetic fertilizers or pesticides.
Free from chemical injections or additives, such as antibiotics or hormones.
In medicine, a descriptive term for things or conditions that have to do with an organ in the body. The term can also refer to something that is derived from living organisms.