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rn
 
Noun rn has 2 senses
  1. radon, Rn, atomic number 86 - a radioactive gaseous element formed by the disintegration of radium; the heaviest of the inert gasses; occurs naturally (especially in areas over granite) and is considered a hazard to health
    --1 is a kind of chemical element, element; noble gas, inert gas, argonon
  2. registered nurse, RN - a graduate nurse who has passed examinations for registration
    --2 is a kind of nurse
    --2 has particulars: nurse-midwife; nurse practitioner, NP, nurse clinician
rlated words for thermal energy rlb rm rma rmediator rmi rmitie rmullins rn rna rna polymerase rna reverse transcriptase pcr rnadomly rnase ro-en ro roaasted

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