me·ris·tic \məˈristik\adjective Etymology: Greek meristos divided, divisible + English -ic — more at meristem 1.: of, relating to, or divided into segments (as metameres) < meristic changes > < meristic organization of body structures > 2.: characterized by or involving modification in number or in geometrical relation of body parts < meristic variation > < meristic characters > • me·ris·ti·cal·ly\-tə̇k(ə)lē\adverb