rocket propellant rocket plane • rocket propellent · · · Info · Definitions · Synonyms · Characters · · rocket propellant · · Text Common · · Latin · · Scripts 17 · · Length 5 · · Syllables Definitions · · · (noun) an explosive charge that propels a rocket. Synonyms: rocket fuel, rocket propellant, rocket propellent. · · Noun Definition 1 Synonyms · · · rocket fuel · · Synonym 1 rocket propellent · · Synonym 2 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 k latin small letter k U+006B l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 r latin small letter r U+0072 t latin small letter t U+0074