English Prefix atto- Etymology From Danish and Norwegian atten, eighteen. In the International System of Units and other metric systems of units, multiplying the unit to which it is attached by 10-18. Symbol: a Translations French: atto- French Prefix atto- atto-
Etymology From Danish and Norwegian atten, eighteen. In the International System of Units and other metric systems of units, multiplying the unit to which it is attached by 10-18. Symbol: a
Translations French: atto- French Prefix atto- atto-
