atto- combining form - Definition, pictures, pronunciation and usage notes | Oxford Advanced American Dictionary at OxfordLearnersDictionaries.com

Definition of atto- combining form from the Oxford Advanced American Dictionary

atto-

combining form

NAmE//ˈætoʊ//

(in units of measurement) a factor of 10⁻18 200 attowatts

Want to learn more?

Find out which words work together and produce more natural sounding English with the Oxford Collocations Dictionary app.

See atto- in the Oxford Advanced Learner's Dictionary

Check pronunciation: atto-