a very large round container or building in which gas is stored and from which it is sent through pipes to other buildings Topics Buildingsc2, Houses and homesc2(大型)储燃气罐,储气库 Word Originlate 18th cent. (in the sense ‘container for holding or measuring a gas’): from French gazomètre, from gaz ‘gas’ + -mètre ‘(instrument) measuring’.