zettametre

== English == === Etymology === From zetta- + metre. === Noun === zettametre (plural zettametres) (metrology) An SI unit of length equal to 1021 metres. Symbol: Zm Alternative forms: Zm (symbol), zettameter (US) Holonyms: yottametre < ronnametre < quettametre Meronyms: picometre < nanometre < micrometre < millimetre < centimetre < decimetre < metre < kilometre < megametre < gigametre < terametre < petametre < exametre ==== Translations ==== === Anagrams === zettameter