Definition of "jig-saw" []

• A reciprocating saw caused to operate in proper relation with a table upon which the piece to be sawn is held, the motion of the saw being derived from a crank and pitman. (noun)
• To cut with a jig- or scroll-saw.

The Century Dictionary (Public Domain)

• "Excavators and scientists say they are piecing together a giant jig-saw puzzle to understand what Los Angeles was like between 11,000 and 40,000 years ago."
• "These can be a big jig-saw puzzle that you spread out on a table, a game of Scrabble, card games, I Spy, or Simon Says (but play it with a twist, asking children to do the opposite of the directions you call out)."
• "Panenteric IBD-like disease in a patient with regressive autism shown for the first time by wireless capsule enteroscopy: Another piece in the jig-saw of the gut-brain syndrome?"