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  • noun

Synonyms for femtometer

a metric unit of length equal to one quadrillionth of a meter

References in periodicals archive ?
The hadronic horizon is a distance between electrons, [r.sub.c], which measures one femtometer (1 fm=[10.sup.-15] m).
The drift in the output wavelength is within 320 femtometers over hours of operation, including the warmup time.
In the nuclear case, the structures are based on nucleons such as protons and neutrons and those building blocks are measured using femtometers (10-15).
While in the neutron stars, these structures are based on protons and neutrons, which exist in the scale of femtometers, the structures found in cells can be measured in the scale of nanometers - a difference of a factor of a million.