(of an engine, aircraft, missile, etc.) to take in air from the atmosphere to oxidize the fuel for combustion.
Historical Examples

It is known that the swimming bladder of fishes becomes developed into the lungs of air-breathing vertebrates and man himself.
Our Common Insects Alpheus Spring Packard

The organs of air-breathing are called, in general, lungs (pulmones).
The Wonders of Life Ernst Haeckel

It is also singular that the Land-snails at once appear instead of the intermediate forms of the air-breathing fresh-water snails.
The Chain of Life in Geological Time Sir J. William Dawson

It was as if some great, air-breathing sea-monster was exhaling beneath the waves.
Kastle Krags Absalom Martin

Besides this, millions of air-breathing animals die, without leaving anything behind them to mark their existence.
The Atlantic Monthly, Volume 18, No. 108, October, 1866 Various

Man, in common with all air-breathing animals, has two nasal cavities.
A Practical Physiology Albert F. Blaisdell

In this fish, which not only leaves the water, but is said to climb trees, the air-breathing organ is greatly developed.
A Guide to the Study of Fishes, Volume 1 (of 2) David Starr Jordan

And in Nova Scotia the bones of air-breathing reptiles and land snails have been discovered.
Sea-Weeds, Shells and Fossils Peter Gray

air-breathing in fishes was originally performed by the unchanged walls of the œsophagus perhaps at specially vascular localities.
A Guide to the Study of Fishes, Volume 1 (of 2) David Starr Jordan

Slab of sandstone from the coal-measures of Pennsylvania, with footprints of air-breathing reptile and casts of cracks.
A Manual of Elementary Geology Charles Lyell.


acquiring oxygen from the air

Tests have been completed on air-breathing rocket engines.


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