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Pronunciation varies by accent · noun
(metrology) An SI unit of length equal to 10⁻¹⁸ metres. Symbol: am.
Holonyms: femtometre < picometre < nanometre < micrometre < millimetre < centimetre < decimetre < metre < kilometre < megametre < gigametre < terametre < petametre < exametre < zettametre < yottametre < ronnametre < quettametre
Meronyms: yoctometre < zeptometre
Use attometre when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Attometre means (metrology) An SI unit of length equal to 10⁻¹⁸ metres. Symbol: am.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Holonyms: femtometre < picometre < nanometre < micrometre < millimetre < centimetre < decimetre < metre < kilometre < megametre < gigametre < terametre < petametre < exametre < zettametre < yottametre < ronnametre < quettametre
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