Dictionary

ronnagram en · NOUN

Etymology

From ronna- + gram.

Meanings

1. An SI unit of mass equal to 10²⁷ grams. Symbol: Rg
   • The Earth weighs about six ronnagrams.
   • The arrival of the new prefixes means the Earth can now be said to weigh six ronnagrams, and Jupiter about two quettagrams. 2022 November 18, Ian Sample, “Earth weighs in at six ronnagrams as new prefixes picked for big and small”, in The Guardian:

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