Organic  adj. 1 of or affecting a bodily organ or organs. 2 (of a plant or animal) having organs or an organized physical structure. 3 produced without the use of artificial fertilizers, pesticides, etc. 4 (of a chemical compound etc.) Containing carbon. 5 a structural, inherent. B constitutional. 6 organized or systematic (an organic whole).  organically adv. [greek: related to *organ]