There are 2 main definitions of Rf in English:

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Rf 1

Line breaks: Rf

symbol

The chemical element rutherfordium.

Definition of Rf in:

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There are 2 main definitions of Rf in English:

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RF 2 Line breaks: RF

abbreviation

Definition of Rf in:

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Word of the day fortissimo
Pronunciation: fôrˈtisəˌmō
adverb
(especially as a direction) very loud or loudly