gas engine gas embolism • gas engineer · · · Info · Definitions · Characters · · gas engine · · Text Common · · Latin · · Scripts 10 · · Length 3 · · Syllables Definitions · · · (noun) an internal-combustion engine similar to a gasoline engine but using natural gas instead of gasoline vapor. Synonyms: gas engine. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 e latin small letter e U+0065 g latin small letter g U+0067 i latin small letter i U+0069 n latin small letter n U+006E s latin small letter s U+0073