...
RR {Response Regulator}, abbr., {med.}
RR {respiratory rate}, abbr., {med.}
RR {Regierungsrat}, abbr., {pol.}
RR {Riva-Rocci}, abbr., {med.}
RR {Respiratory rate}, abbr., {med.}
RR {Rechtsprechungs-Report}, abbr., {law}