ronnametre

English

Etymology

From ronna- +‎ metre.

Noun

ronnametre (plural ronnametres) (British spelling)

  2. (metrology) An SI unit of length equal to 1027 metres. Symbol: Rm
    Alternative forms: Rm (symbol), ronnameter (US)
    Holonym: quettametre
    Meronyms: picometre < nanometre < micrometre < millimetre < centimetre < decimetre < metre < kilometre < megametre < gigametre < terametre < petametre < exametre < zettametre < yottametre
    The observable universe is about one ronnametre in diameter.

Anagrams

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