noun
air-breathing engine
Technical term for an engine that takes in atmospheric air for combustion, such as a jet or ramjet, as opposed to a rocket that carries its own oxidizer.
スクラムジェットはエアブリージングエンジンの一種です。
A scramjet is a type of air-breathing engine.
Variant with interpuncts; sometimes used for clarity in technical writing.
A rocket engine carries its own oxidizer, while an air-breathing engine uses atmospheric oxygen.
Loanword from English 'air breathing engine'.