balloon

Từ điển American Heritage Dictionary 4th

bal·loon (bə-lo͞onʹ)n.
1.
a. A flexible bag designed to be inflated with hot air or with a gas, such as helium, that is lighter than the surrounding air, causing it to rise and float in the atmosphere.
b. Such a bag with sufficient capacity to lift and transport a suspended gondola or other load.
c. Such a bag shaped like a figure or object when inflated; an inflatable.
2. A usually round or oblong inflatable rubber bag used as a toy.
3. Medicine. A sac that is inserted into a body cavity or tube and distended with air or gas for therapeutic purposes, such as angioplasty.
4. A rounded or irregularly shaped outline containing the words that a character in a cartoon is represented to be saying.v. bal·looned, bal·loon·ing, bal·loonsv. intr.
1. To ascend or ride in a balloon.
2. To expand or swell out like a balloon. See Synonyms at bulge.
3. To increase or rise quickly.v. tr.
To cause to expand by or as if by inflating.adj.
Suggestive of a balloon, as in shape:
balloon curtains. [French ballon, from Italian dialectal ballone, augmentative of balla, ball, of Germanic origin. See bhel-² in Indo-European Roots.] bal·loonʹist n.

• Từ đồng nghĩa / Synonyms:
  inflate, billow