Wiktionary

1. nano(Noun)

   The nanotechnology industry, or a product of such industry

2. Nano(Noun)

   abbreviation for the iPod Nano.

The New Hacker's Dictionary

1. nano

   [CMU: from nanosecond] A brief period of time. “Be with you in a nano” means you really will be free shortly, i.e., implies what mainstream people mean by “in a jiffy” (whereas the hackish use of ‘jiffy’ is quite different — see jiffy).

2. nano

   [SI: the next quantifier below micro-; meaning × 10-9] Smaller than micro-, and used in the same rather loose and connotative way. Thus, one has nanotechnology (coined by hacker K. Eric Drexler) by analogy with microtechnology; and a few machine architectures have a nanocode level below microcode. Tom Duff at Bell Labs has also pointed out that “Pi seconds is a nanocentury”. See also quantifiers, pico-, nanoacre, nanobot, nanocomputer, nanofortnight.

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