Gambison \Gam"bi*son\, n. [OF. gambeson, gambaison, fr. gambais, wambais, of German origin: cf. MHG. wambeis, G. wams doublet, fr. OHG. wamba, stomach. See {Womb}.] A defensive garment formerly in use for the body, made of cloth stuffed and quilted. [1913 Webster]