ALL meanings of nanometre
- noun nanometre An SI subunit of length equal to 10-9 metres. Symbol: nm. 1
- noun Definition of nanometre in Technology (unit) 10^-9 metres; one thousand millionth part of a metre. The wavelength of visible light and dimensions in nanotechnology are typically measured in nanometres. 1
- noun nanometre one thousand-millionth of a metre 0