emergency room emergency procedure • emergent · · · Info · Definitions · Synonyms · Characters · · emergency room · · Text Common · · Latin · · Scripts 14 · · Length 5 · · Syllables Definitions · · · (noun) a room in a hospital or clinic staffed and equipped to provide emergency care to persons requiring immediate medical treatment. Synonyms: emergency room, ER. · · Noun Definition 1 Synonyms · · · er · · Synonym 1 Characters · · space U+0020 c latin small letter c U+0063 e latin small letter e U+0065 g latin small letter g U+0067 m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 y latin small letter y U+0079