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Pronunciation varies by accent · noun
(metrology) An SI unit of length equal to 10²¹ metres. Symbol: Zm.
Holonyms: yottametre < ronnametre < quettametre
Meronyms: picometre < nanometre < micrometre < millimetre < centimetre < decimetre < metre < kilometre < megametre < gigametre < terametre < petametre < exametre
The largest known galaxy, at the centre of the Abell 2029 cluster in Virgo, has a diameter of around 53 zettametres.
As one of my reviewers (SP Gray) puts it: '...I think that Andromeda will be a good deal closer to the Solar System than it is now, before we read of its distance in zettametres'
How many kiloparsecs are there in a zettametre (10²¹ m)?
Use zettametre when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Zettametre means (metrology) An SI unit of length equal to 10²¹ metres. Symbol: Zm.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Holonyms: yottametre < ronnametre < quettametre
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