adj. increased in extent or size or bulk or scope. Opposite of contracted. [ Narrower terms: blown-up, enlarged; dilated; distended, swollen; inflated ] [ WordNet 1.5 ]
2. (Printnig) wider than usual for a particular height; -- of printers' type. Contrasted with condensed. Syn. -- extended. [ WordNet 1.5 ]
n. Anything which causes expansion esp. (Mech.) a tool for stretching open or expanding a tube, etc. [ 1913 Webster ]