a bag made of silk or other light material, and filled with hydrogen gas or heated air, so as to rise and float in the atmosphere; especially, one with a car attached for aerial navigation.-a ball or globe on the top of a pillar, church, etc., as at st. paul's, in london.-a round vessel, usually with a short neck, to hold or receive whatever is distilled; a glass vessel of a spherical form.-a bomb or shell.-a game played with a large inflated ball.-the outline inclosing words represented as coming from the mouth of a pictured figure.-to take up in, or as if in, a balloon.-to go up or voyage in a balloon.-to expand, or puff out, like a balloon.