Nano
/nænəʊ/prefix
Very small; one billionth.
The size of the particle was only a few nanometres.
Often appears as...
- nanometer
- nanotechnology
Usage tips
Technical
Definition 1 of 4
Pro Tip 1/3Small Scale
Used to discuss objects or processes on an incredibly tiny scale, usually invisible to the naked eye.
Under a microscope, you can see the nano structure of this material.
Pro Tip 2/3Precision Required
When precision is crucial, especially in science or engineering, 'nano' is often used.
Constructing microchips requires nano-level precision.
Pro Tip 3/3Not for Time
While 'nano' means one billionth, it is not typically used for time except in 'nanoseconds'.
The nano coating on these glasses makes them water-resistant.
Compare with
infinitummicrominusculesmalltiny
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