water locust n 1: honey locust of swamps and bottomlands of southern United States having short oval pods; yields dark heavy wood [syn: {water locust}, {swamp locust}, {Gleditsia aquatica}]
Water locust \Wa"ter lo"cust\ (Bot.) A thorny leguminous tree ({Gleditschia monosperma}) which grows in the swamps of the Mississippi valley. [1913 Webster]