Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A unit of time equal to 0.000 000 000 000 001 seconds and with symbol fs.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. one quadrillionth (10^-15) of a second; one thousandth of a picosecond

Etymologies

femto- + second (Wiktionary)

Examples

Comments

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