exametre

== English == === Etymology === From exa- +‎ metre. === Noun === exametre (plural exametres) (metrology) An SI unit of length equal to 1018 metres. Symbol: Em Alternative forms: Em (symbol), exameter (US) Holonyms: zettametre < yottametre < ronnametre < quettametre Meronyms: picometre < nanometre < micrometre < millimetre < centimetre < decimetre < metre < kilometre < megametre < gigametre < terametre < petametre === Anagrams === exameter, extreame