plural of Bellow

A device for delivering pressurized air in a controlled quantity to a controlled location. At its most simple terms a bellows is a container which is deformable in such a way as to alter its volume which has an outlet or outlets where one wishes to blow air.

Any flexible container or enclosure, as one used to cover a moving joint.

(photography) Flexible, light-tight enclosures connecting the lensboard and the camera back.

(figurative) That which fans the fire of hatred, jealousy, etc.

plural of bellow

(intransitive, transitive) To operate a bellows; to direct air at (something) using a bellows.

(intransitive, figurative) To expand and contract like a bellows.

(transitive) To fold up like a bellows; to accordion.

third-person singular simple present indicative of bellow