\▐ jig\ n [perhaps fr. MF giguer to frolic, fr. gigue fiddle, of Gr origin; akin to OHGr gīga fiddle; akin to ON geiga to turn aside] (ca. 1560) (1) A device for positioning component parts while they are being assembled or otherwise worked on, or for holding tools. (2) A clamping device used to secure a bonded assembly until the adhesive has set. (3) A restraining frame into which freshly molded parts are placed to prevent their warping during annealing or final cooling. (Merriam-Webster's collegiate dictionary, 11th edn. Merriam-Webster, Springfield, MA, 2004; Whittington's dictionary of plastics. Carley, James F (ed). Technomic, 1993).