atto-

Morpheme

atto-

Type

prefix

Denotation

eighteen

Etymology

Danish atten

Evidence

attoampere, attobarn, attocell, attoclock, attogram, attohertz, attojoule, attokatal, attoliter, attometer, attomolar, attomole, attoparsec, attophysics, attopulse, attoreactor, attosecond, attowatt

Notes

International System of Units prefix

See Also

Eigh(t), Teen