Source : WordNet®

jigsaw
     n 1: a portable power saw with a reciprocating blade; can be used
          with a variety of blades depending on the application
          and kind of cut; generally have a plate that rides on
          the surface that is being cut [syn: {saber saw}, {reciprocating
          saw}]
     2: fine-toothed power saw with a narrow blade; used to cut
        curved outlines [syn: {scroll saw}, {fretsaw}]