femtometer vs femtometre what difference
what is difference between femtometer and femtometre
English
Etymology
femto- + meter
Noun
femtometer (plural femtometers)
- US spelling of femtometre: A length of 10-15 of a meter, 1 quadrillionth of a meter.
Anagrams
- femtometre
English
Alternative forms
- (US) femtometer
Etymology
femto- + metre
Noun
femtometre (plural femtometres)
- 10-15 of a metre. Symbol: fm
Derived terms
- femtometric
Translations
Anagrams
- femtometer
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