ALL meanings of femtometer
fem·to·me·ter
F f - noun femtometer fermi. Symbol: fm. 1
- noun femtometer Alternative spelling of from=US A length of 10-15 of a meter, 1 quadrillionth of a meter. 1
- noun femtometer US spelling of femtometre A length of 10-15 of a meter, 1 quadrillionth of a meter. 0