ver·mic·u·la·tion \ ̷ ̷ˌ ̷ ̷ ̷ ̷ˈlāshən\noun (-s) Etymology: Latin vermiculation-, vermiculatio, from vermiculatus (past participle of vermiculari) + -ion-, -io -ion 1.: penetration by worms : the state of being worm-eaten 2.: the act or process of moving like a worm : writhing, twisting < the vermiculation of the intestines > 3.: an especially ornamental narrow and wavy or tortuous marking or system of markings