Rh

1. Symbol for rhodium. 2. See R. blood group, Blood Groups appendix.

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radiant heat; radiation hybrid; radiological health; reactive hyperemia; recurrent herpes; regulatory hormone; rehabilitation; relative humidity; releasing hormone; renal hemolysis; retinal hemorrhage; reverse hybridization; ribonuclease H; right hand; right-handed [person]; right heart; right hemisphere; right hyperphoria; room humidifier