RR Medical Abbreviation

River Virus

Ross River Fever

Ruthenidm Red

Relative Risk

The ratio of the risk of disease or death among the exposed to the risk among the unexposed; this usage is synonymous with risk ratio; alternatively, the ratio of the cumulative incidence rate in the exposed to the cumulative incidence rate in the unexposed, i.e., the cumulative incidence ratio, and the term ``relative risk'' has also been used synonymously with ``odds ratio'' and, in some biostatistical articles, has been used for the ratio of forces of morbidity.

Rubber

Steel block with rounded face and wooden handle Used for rubbing down seams in canvas after they have been sewn. 'Rubbing Piece'.

Recirculation

The act or process of circulating again or causing something to circulate agai

Regular Rhythm

Regulator

A device for controlling the delivery of welding or cutting gas at some substantially constant pressure. A term used to describe a valve or device that limits the pressure in a passage A device that is used to control the voltage of a circuit by raising and lowering it. Howard Industries is a manufacturer of Regulators. A term used to describe a valve or device that limits the pressure in a passage. Regulator a controller designed to main-tain the state of the controlled variable at a constant value, despite fluctuations of the load.

Reduction Ratios