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.
a porcupinefish, Diodon holacanthus, inhabiting tropical and subtropical waters.
- Balloon frame
a wooden building frame composed of machine-sawed scantlings fastened with nails, having studs rising the full height of the frame with the joists nailed to the studs and supported by sills or by ribbons let into the studs. Historical Examples They are built of wood, balloon frame, with a plain pitch roof, without ornament. Woodward’s […]
- Balloon glass
noun a large rounded drinking glass for brandy, etc.; also, a stemmed wine glass of this shape