micrometer

¹

[ mahy-krom-i-ter ]

noun

1. any of various devices for measuring minute distances, angles, etc., as in connection with a telescope or microscope.
2. Also called mike.. a precision instrument with a spindle moved by a finely threaded screw, for the measurement of thicknesses and short lengths, commonly used by machinists for turning shafts or boring holes.

micrometer

²

[ mahy-kroh-mee-ter ]

noun

1. micron ( def 1 ).

micrometer

/ maɪˈkrɒmɪtə; ˌmaɪkrəʊˈmɛtrɪk /

noun

1. any of various instruments or devices for the accurate measurement of distances or angles
2. Also calledmicrometer gaugemicrometer calliper a type of gauge for the accurate measurement of small distances, thicknesses, diameters, etc. The gap between its measuring faces is adjusted by a fine screw, the rotation of the screw giving a sensitive measure of the distance moved by the face

micrometer

¹

/ mī′krō-mē′tər /

1. A unit of length in the metric system equal to one millionth (10 ^-6) of a meter.
2. Also called micron

micrometer

²

/ mī-krŏm′ĭ-tər /

1. A device for measuring very small distances, angles, or objects, especially one based on the rotation of a finely threaded screw, as in relation to a microscope.

Derived Forms

• micrometric, adjective
• miˈcrometry, noun

Word History and Origins

Origin of micrometer¹

First recorded in 1660–70; micro- + -meter

Origin of micrometer²

micro- + meter ¹

Example Sentences

They obtained data of PM concentrations that were 10 micrometers or less and 2.5 micrometers or less in diameter.

From Science Daily

However, they tend to be too small -- just a few tens of micrometers across-for industrial-scale applications and, thus, better suited for lab research.

From Science Daily

By mounting an acoustic vortex emitter onto a robotic platform, the acoustic vortex beam can be moved at the micrometer scale.

From Science Daily

These micro-pyramids measure about ten micrometers, which is about one-tenth the diameter of a hair.

From Science Daily

And the finished products -- the individual robots -- measured 2.8 micrometers in diameter.

From Science Daily