A velum of silica in some diatoms / The hollow of the hand or foot.

plural of vola

An artificial language (constructed language) created in 1879 by Johann Martin Schleyer.

(physics) Evaporating or vaporizing readily under normal conditions. / (of a substance, informal) Explosive. / (of a price etc) Variable or erratic. / (of a person) Quick to become angry or violent.

A chemical or compound that changes into a gas easily. / (programming) A variable that is volatile, i.e. has its associated memory immediately updated with any change in value.

plural of volante

(anatomy) Pertaining to the palm of the hand or the sole of the foot.

(heraldry) Having extended wings as if flying. / (heraldry) Represented as unsupported in the air. / Flying, or able to fly. / Moving quickly or lightly, as though flying; nimble.

(historical) A cumbrous two-wheeled pleasure carriage used in Cuba. The body is in front of the axle; the driver rides on the horse.

The state of being volatile. / (uncountable) The state of having a low boiling point and evaporating readily. / (computing, uncountable) The state of not retaining data in the absence of power.