Femtosecond Definition
fĕmtə-sĕkənd
femtoseconds
noun
One quadrillionth (10−15 ) of a second.
American Heritage
Other Word Forms of Femtosecond
Noun
Singular:
femtosecond
Plural:
femtosecondsOrigin of Femtosecond
-
femto- + second
From Wiktionary
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