hĭulco, no perf., ātum, 1, v. a. [hiulcus],
to cause to gape or split open , to break into chinks : cum gravis exustos aestus hiulcat agros, Cat. 68, 62: per hiulcatos agros, Fortun. Carm. 6, 12, 6.
hiulcō —, —, āre hiulcus, to cause to gape, open in chinks : agros, Ct. ...
An Elementary Latin Dictionary