Containing elements in appropriate proportion; proportionately weighted on all dimensions and therefore unlikely to tip over.

(historical, military) A tethered balloon, attached to the ground with a metal cable, intended to deter low-flying enemy aircraft; used especially in World War II.

Alternative spelling of hot-air balloon

A form of bracket clock with a balloon-shaped case.

a representation of an animal, made of a number of balloons twisted, shaped and connected

A tropical perennial climbing vine, Cardiospermum halicacabum, having ornamental balloon-like fruits, and used in traditional Chinese medicine.

A perennial herb, Platycodon grandiflorus, from Asia, having ornamental blue star-shaped flowers.

(nautical) A large, light foresail sometimes used instead of a jib.

(meteorology) A small unmanned balloon whose ascent is followed by a theodolite to obtain data for the computation of the speed and direction of winds in the upper air.

Growing rapidly as a balloon. / Rising high in the air.