Dictionary

Rn

symbol

Definition of RN

radon
ADVERTISEMENT

1RN

noun \ˌär-ˈen\

Definition of RN

First Known Use of RN

1903

2RN

abbreviation

Definition of RN

Royal Navy
Medical Dictionary

Rn

symbol

Medical Definition of RN

radon

Browse

Next Word in the Dictionary: RNAPrevious Word in the Dictionary: rmtAll Words Near: Rn
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears