Meaning of BELLOWS in English

BELLOWS

Mechanical contrivance for creating a jet of air, consisting usually of a hinged box with flexible sides, which expands to draw in air through an inward opening valve and contracts to expel the air through a nozzle.

Invented in medieval Europe, the bellows was commonly used to speed combustion, as in a blacksmith's or ironworker's forge , or to operate reed or pipe organs .

Bellows inlaid with mother-of-pearl and pewter, Dutch, 17th century; in the Victoria and Albert ...

By courtesy of the Victoria and Albert Museum, London

Britannica English dictionary.      Английский словарь Британика.