[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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[Reference(s) to this entry by made by: {pico-}{quantifiers}]