Jigsaw puzzles (Genre/Form Term)

Art & architecture thesaurus online, July 30, 2014 (jigsaw puzzles. UF jig-saw puzzles; jigsaws (puzzles). Puzzles of irregularly shaped and tightly interlocking pieces of pasteboard or wood that when fitted together typically form pictures or designs; name derived in the 20th century from the type of saw used to create the intricate cutouts)

Reitz, J.M. ODLIS : online dictionary for library and information science, July 30, 2014 (jigsaw puzzle: A type of puzzle introduced in 1739, originally called a "dissected puzzle" because its flat image-bearing surface is cut into pieces of various shapes that can be disassembled. Once the loose pieces have been mixed up, the challenge lies in reassembling them into the complete image. Jigsaw puzzles were originally made of wood, usually for children and in a limited number of pieces, but in 1934, when manufacturers began making them from die-cut cardboard, the number of pieces increased and the price dropped significantly, making them a common household pastime for children and adults)

Thesaurus for graphic materials, via WWW, July 30, 2014 (Jigsaw puzzles. BT Puzzles)

RDA glossary, viewed July 30, 2014 (Jigsaw Puzzle: A unit of extent of three-dimensional form consisting of a picture usually on pasteboard or wood, which has been cut into interlocking shapes intended to be re-assembled)

Britannica online, July 30, 2014 (jigsaw puzzle, any set of varied, irregularly shaped pieces that, when properly assembled, form a picture or map. The puzzle is so named because the picture, originally attached to wood and later to paperboard, was cut into its pieces with a jigsaw, which cuts intricate lines and curves)

Merriam-Webster online, July 30, 2014 (jigsaw puzzle: a puzzle consisting of small irregularly cut pieces that are to be fitted together to form a picture; picture puzzle: jigsaw puzzle)

LCSH (Jigsaw puzzles. UF Picture puzzles (Jigsaw puzzles). BT Puzzles)