Attosecond

Meaning

Noun

●

In Metrology, SI units & Time:

An SI

of time

to 10⁻¹⁸

. Symbol: as

Sourced from

Origin

attosecond

English

atto-

English

atten

Danish

átján

Old Norse

second

English

seconde

Old French (842-ca. 1400)

secunda

Latin

seconder

Middle French (ca. 1400-1600)

secundo

Latin

secont

Old French (842-ca. 1400)

secundus

Latin

Sourced from

Synonyms

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