plural balloons
1
: a nonporous bag of light material that can be inflated especially with air or gas: such as
a
: a bag that is filled with heated air or a gas lighter than air so as to rise and float in the atmosphere and that usually carries a suspended load (such as a gondola with passengers)
b
: an inflatable bag (as of rubber or plastic) usually used as a toy or for decoration
c
medical
: a small bag that can be inflated (as in a bodily cavity) with air or gas
More than 700,000 Americans undergo procedures in which clogged arteries are cleared out with a balloon and then propped open with a tiny metal scaffold called a stent.—Ron Winslow
2
: the outline enclosing words spoken or thought by a figure especially in a cartoon
1
: relating to, resembling, or suggesting a balloon
a balloon sleeve
2
US
: having or being a final installment that is much larger than preceding ones in a term or installment note
a balloon note
a balloon mortgage
Got a commercial mortgage coming due? If the loan requires a balloon payment (as many such mortgages do), you may have a hard time refinancing …—INC
ballooned; ballooning; balloons
1
: to swell or puff out : expand
ballooned to 200 pounds
2
: to ascend or travel in or as if in a balloon
3
: to increase rapidly
ballooning prices
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Merriam-Webster unabridged
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