atto-

1. a combining form that enters into compounds denoting a unit one-quintillionth (10 −18 ) the size of the unit named by the stem.

atto-

prefix

1. denoting 10 ^–18 a

   attotesla

Word History and Origins

Origin of atto-¹

< Danish or Norwegian att ( en ) eighteen + -o-

Word History and Origins

Origin of atto-¹

from Norwegian, Danish atten eighteen

Example Sentences

This was posted in the usual places on September 3d, the day fixed for the atto di fede in which Molinos was to appear.

From Project Gutenberg

The day after the atto di fede his disciples performed their abjuration.

From Project Gutenberg

Fel yr oedd Pedr yn eistedd ar faen Mynor, Crist a ddaeth atto, ac efe yn unig.

From Project Gutenberg

The imperial council appointed as his successor one Godfrey; the pope had nominated Atto.

From Project Gutenberg

Atto, however, was a puritan, who endeavored to resist the general demoralization of the age.

From Project Gutenberg