rocker arm rocker • rocker bent · · · Info · Definitions · Synonyms · Characters · · rocker arm · · Text Common · · Latin · · Scripts 10 · · Length 3 · · Syllables Definitions · · · (noun) a lever pivoted at the center; used especially to push a valve down in an internal-combustion engine. Synonyms: rocker arm, valve rocker. · · Noun Definition 1 Synonyms · · · valve rocker · · Synonym 1 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 m latin small letter m U+006D o latin small letter o U+006F r latin small letter r U+0072