Definition of nanometer in English:

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Pronunciation: /ˈnanəˌmēdər/
(British nanometre , abbreviation nm)


One billionth of a meter.
Example sentences
  • These things are measured in nanometres, with a nanometre being a millionth of a millimetre, or about as far as a fingernail grows in a second.
  • The grids comprise carbon nanotubes - long, hollow cylinders of pure carbon a few millionths of a millimetre across and several thousand nanometres long.
  • Nanotechnology is used to study the fabrication and manipulation of structures that range in size from one hundred nanometres to a single nanometre (or a billionth of a metre).

For editors and proofreaders

Syllabification: nan·o·me·ter

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