| RRI | recurrent respiratory infection; reflex relaxation index; relative response index |
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| RRIS | recurrent respiratory infection syndrome |
| RSPK | recurrent spontaneous psychokinesis |
| RUD | recurrent ulcer of the duodenal bulb |
| RURTI | recurrent upper respiratory tract infection |
| laryngeal vertigo | Fainting as a result of a coughing spell, caused by persistent increased intrathoracic pressure diminishing venous return to the heart, thus lowering cardiac output; most often occurs in heavy-set male smokers who have chronic bronchitis. Synonym: Charcot's vertigo, laryngeal vertigo. (05 Mar 2000) |
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