n. pl. the buttocks. [ Slang ]
Syn. -- buttocks, arse, butt, backside, bum, can, fundament, hindquarters, hind end, keister, posterior, prat, rear, rear end, rump, stern, seat, tail, tail end, tooshie, tush, bottom, behind, derriere, fanny, ass. [ WordNet 1.5 ]

n. 1. same as bunsen burner; a gas burner used in laboratories; has an air valve to regulate the mixture of gas and air.
Syn. -- bunsen burner, etna. [ WordNet 1.5 ]

(Elec.) A zinc-carbon cell in which the zinc (amalgamated) is surrounded by dilute sulphuric acid, and the carbon by nitric acid or a chromic acid mixture, the two plates being separated by a porous cup. [ Webster 1913 Suppl. ]

See under Battery. [ 1913 Webster ]

(Chem.), a kind of burner, invented by Professor Bunsen of Heidelberg, consisting of a straight tube, four or five inches in length, having small holes for the entrance of air at the bottom. Illuminating gas being also admitted at the bottom, a mixture of gas and air is formed which burns at the top with a feebly luminous but intensely hot flame. [ 1913 Webster ]