femto-


  1. a combining form used in the names of units of measurement which are 10−15 (one quadrillionth) smaller than the unit denoted by the base word.

Origin of femto-

1
<Danish, Norwegian femt(en) fifteen + -o-

Words Nearby femto-

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British Dictionary definitions for femto-

femto-

prefix
  1. denoting 10 –15: femtometer Symbol: f

Origin of femto-

1
from Danish or Norwegian femten fifteen

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