Definition of nano- in English:

nano-

Syllabification: nano-

combining form

  • 1Denoting a factor of 10−9 (used commonly in units of measurement): nanosecond
  • 1.1Denoting a very small item: nanoplankton

Origin

via Latin from Greek nanos 'dwarf'.

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Pronunciation: ˌastrə(ʊ)ˈgeɪʃ(ə)n
noun
(in science fiction) navigation in outer space