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micron

or mi·kron

[ mahy-kron ]

noun

, plural mi·crons, mi·cra [mahy, -kr, uh].
  1. Also called micrometer. the millionth part of a meter. : μ, mu
  2. Physical Chemistry. a colloidal particle whose diameter is between 0.2 and 10 microns.
  3. Physics. a very small unit of pressure, equal to that exerted by a column of mercury 1μ high.


micron

/ ˈmaɪkrɒn /

noun

  1. a unit of length equal to 10 –6metre. It is being replaced by the micrometre, the equivalent SI unit


micron

/ krŏn′ /

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Word History and Origins

Origin of micron1

1880–85; < Greek mīkrón a little, noun use of neuter singular of mīkrós small; -on 1

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Word History and Origins

Origin of micron1

C19: New Latin, from Greek mikros small

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Compare Meanings

How does micron compare to similar and commonly confused words? Explore the most common comparisons:

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Example Sentences

The team can’t say precisely what the optimum carrying capacity of the amoebas is, but they achieved their highest speeds with cargo between 30 and 60 microns in diameter — an impressive load for the tiny microbes.

The tattoo ink contains a UV-activated dye inside of a plastic nanocapsule less than a micron in diameter – or thousandth of a millimeter – about the same size as an ordinary tattoo pigment.

By one estimate, there are a hundred million bits of debris that are a millimeter in size, a hundred trillion as small as a micron.

Most of the particles generated by burning wood are smaller than one micron—a size believed to be most damaging to our lungs.

Their size is measured by the unit used in the microscope, called the micron, which is about 1⁄25000 of one inch.

The man who studies bacteria measures by the micron, 25,000 of which go to the inch.

This unit is the one-thousandth part of a millimeter and is called the micro-millimeter or micron.

For a moment they saw with a spectrum that reached from the star-wide waves of novas to the micro-micron skittering of neutrinos.

But with the destruction of the planet an almost certainty, the collective nervous system was just one micron away from explosion.

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micromountmicronation