RR Meaning in the Cambridge English Dictionary
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Meaning of “RR” in the English Dictionary

"RR" in British English

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RR

US

RR (TRAIN)

written abbreviation for railroad noun

RR (POST)

written abbreviation forruralroute: used in ​addresses in some ​areas in the US

RR (BREATHING)

specialized medical written abbreviation forrespiratoryrate (= the ​rate at which someone ​breathes in and out)
(Definition of RR from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)
Translations of “RR”
in Chinese (Simplified) 火车, 铁路,铁道…
in Chinese (Traditional) 火車, 鐵路,鐵道…
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