Wiktionary
a. Resembling or characteristic of a bellows (device for delivering pressurized air).
Usage examples of "bellowslike".
It stopped at a thing in the street like a manhole cover, flipped the cover off with two pronged levers, eased forward and dropped something round and bellowslike over the hole.
They forced his mouth open with a bellowslike instrument and shone a light into it.
During the ensuing silence, Sciss opened his spacious, bellowslike leather briefcase and slowly drew out a sheet of tracing paper, folded several times and covered with colored markings.
Its bellowslike lungs pumped air in and out, the huffing and puffing of an organic steam locomotive bearing down on me.
In place of the human lungs was a bellowslike organ which drove the air through a throatlike Opening and thence into the great lungs of the hippoid body.