VS.

Angstrom vs. Micrometer

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Angstromnoun

(physics) A unit of length equal to 10−10 meters (that is, one ten-billionth of a meter), approximately the size of an atom, and denoted by the symbol Å, used especially to measure the wavelength of electromagnetic radiation or distances between atoms.

Micrometernoun

An SI/MKS unit of measure, the length of one millionth of a meter. Symbols: µm, um, rm.

Angstromnoun

a metric unit of length equal to one ten billionth of a meter (or 0.0001 micron); used to specify wavelengths of electromagnetic radiation

Micrometernoun

A device used to measure distance very precisely but within a limited range, especially depth, thickness, and diameter.

Angstrom

The angstrom (, ; ANG-strəm, ANG-strum) or ångström is a metric unit of length equal to 10−10 m; that is, one ten-billionth (US) of a metre, a hundred-millionth of a centimetre, 0.1 nanometre, or 100 picometres. Its symbol is Å, a letter of the Swedish alphabet.

Micrometernoun

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.

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Micrometernoun

caliper for measuring small distances

Micrometernoun

a metric unit of length equal to one millionth of a meter

Micrometernoun

a gauge that measures small distances or thicknesses between its two faces, one of which can be moved away from or towards the other by turning a screw with a fine thread.

Micrometernoun

US spelling of micrometre

Micrometer

A micrometer, sometimes known as a micrometer screw gauge, is a device incorporating a calibrated screw widely used for accurate measurement of components in mechanical engineering and machining as well as most mechanical trades, along with other metrological instruments such as dial, vernier, and digital calipers. Micrometers are usually, but not always, in the form of calipers (opposing ends joined by a frame).

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