Ronnagram

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    An SI unit of mass equal to 10²⁷ grams. Symbol: Rg

    "The Earth weighs about six ronnagrams."

Example

More examples

"The Earth weighs about six ronnagrams."

Etymology

From ronna- + gram.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.