A person who eagerly seeks to obtain or possess something, often in a greedy or acquisitive manner. The grasper in the office was always looking for ways to climb the corporate ladder, regardless of who he had to step over.
A tool or device designed to grip or hold objects firmly. The surgeon used a grasper to carefully hold the tissue during the operation.
One who grasps or seizes something physically; a grabber. The quick grasper caught the falling book before it hit the floor.