a method of opening a clogged or narrowed blood vessel in which a small balloon is introduced into the vessel by means of a catheter and then inflated at the site of blockage.
balloon angioplasty n.
A procedure in which a catheter equipped with a tiny balloon at the tip is inserted into an artery that has been narrowed by the accumulation of fatty deposits. The balloon is then inflated to clear the blockage and widen the artery.
- Balloon barrage
a series of moored balloons, usually strung together and hung with cables, for impeding a low-level attack by enemy aircraft.
- Balloon chuck
a lathe chuck having the form of a hollow hemisphere, for enclosing and holding small parts, as balance staffs of watches, so that only their ends are exposed.
- Balloon clock
a bracket clock of the late 18th century, having a round dial on a short case with concave sides resting on bracket feet.