Kuinka äännetään sana "rn"

Lisää oma ääntämesi "rn"

Merkit ja määritelmät "rn"

Noun

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

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Noun

a graduate nurse who has passed examinations for registration

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