অর্থ : 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.
সমার্থক : atomic number 86, radon
অর্থ : A graduate nurse who has passed examinations for registration.
সমার্থক : registered nurse
Rn meaning in Bengali (Bangla).