Micrometer vs. Nanometer

Micrometer and Nanometer Definitions
Micrometer
A device for measuring very small distances, objects, or angles, especially one based on the rotation of a finely threaded screw.
Nanometer
One billionth (10-9) of a meter.
Micrometer
See micron.
Nanometer
Alternative spelling of nanometre
Micrometer
A device used to measure distance very precisely but within a limited range, especially depth, thickness, and diameter.
Nanometer
A metric unit of length equal to one billionth of a meter
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Micrometer
Alternative spelling of micrometre
Micrometer
An instrument, used with a telescope or microscope, for measuring minute distances, or the apparent diameters of objects which subtend minute angles. The measurement given directly is that of the image of the object formed at the focus of the object glass.
Micrometer
Caliper for measuring small distances
Micrometer
A metric unit of length equal to one millionth of a meter