Entry 1 sense Webster, 1913 Mataco · Mat·a·co · IPA 01 n. The three-banded armadillo (Tolypeutis tricinctus). See Illust. under Loricata. 1. The three-banded armadillo (Tolypeutis tricinctus). See Illust. under Loricata.(Zool.) See: Loricata