femto-

pref. One quadrillionth (10^-15): femtovolt.

[From Danish and Norwegian femten, fifteen, from Old Norse fimmtān; see penk^we in Indo-European roots.]

femto-

prefix (Units) denoting 10^–15: femtometer. Symbol: f [from Danish or Norwegian femten fifteen]

femto-

a combining form used in the names of units of measure that are one quadrillionth (10⁻¹⁵) the size of the unit denoted by the base word: femtogram. [< Dan, Norwegian femt(en) fifteen + -o-]

femto-

A prefix meaning 1 quadrillionth (10-15).

单词	femto-
释义	femto- femto- pref. One quadrillionth (10^-15): femtovolt. [From Danish and Norwegian femten, fifteen, from Old Norse fimmtān; see penk^we in Indo-European roots.] femto- prefix (Units) denoting 10^–15: femtometer. Symbol: f [from Danish or Norwegian femten fifteen] femto- a combining form used in the names of units of measure that are one quadrillionth (10⁻¹⁵) the size of the unit denoted by the base word: femtogram. [< Dan, Norwegian femt(en) fifteen + -o-] femto- A prefix meaning 1 quadrillionth (10-15). femto- femto- [′fem·tō] (science and technology) A prefix representing 10^-15, which is 0.000 000 000 000 001, or one-thousandth of a millionth of a millionth. femto- prefix AcronymsSeeF
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