n. The act of entangling, or the state of being entangled; a confused or disordered state; intricacy; perplexity.n. That which entangles; specifically, in fortification, an obstruction placed in front or on the flank of a fortification, to impede an enemy's approach. It is a kind of abatis made by partially severing the trunks of trees, pulling down the tops, and securing them to the ground by means of pickets or crotchets.