nanometer
- n a metric unit of length equal to one billionth of a meter
- In addition, says Mills, because diesel exhaust particles are so small in the nanometer range they may be passing directly from the lungs into the blood and aggravating .
- Nanotechnology takes its name from a nanometer (nm), a billionth of a meter, or about one one-hundred-thousandth the diameter of a human hair.
- The new 45-nanometer Core processor is so compact, you could fit 2 million of its transistors on the period at the end of this sentence.