crypsis

noun

cryp·sis | \ ˈkrip-səs

Definition of crypsis

: the ability of an organism to conceal itself especially from a predator by having a color, pattern, and shape that allows it to blend into the surrounding environment Horned lizards have a delightful variety of defenses. Their primary defense is crypsis; their pattern of coloration varies geographically to match the substrate, and their spines obscure their body outlines, making them difficult to see.— Jeff Mitton … legions of tiny fish and shrimps have evolved to live with impunity among these coral tentacles, escaping predators' notice by resembling their hosts, a feat called crypsis.— Les Kaufman