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mi·cron (μ),

(mī'kron),
Former term for micrometer.

micron (μ, mu)

[mī′kron]
Etymology: Gk, mikros, small
1 See micrometer, def. 2.
2 (in physical chemistry) a colloidal particle with a diameter between 0.2 and 10 μm.

micron

A unit of length equal to 10–6 m.

mi·cron

(mī'kron)
Former term for the measurement now termed a micrometer.

micron

see MICROMETRE.

micrometre

An SI unit of length equal to one millionth of a metre (10−6 m). Symbol: μm. Syn. micron (obsolete term). See nanometre.

mi·cro·me·ter

(mcm) (mīkrō-mētĕr, mī-kromĕ-tĕr)
1. One millionth of a meter; formerly called a micron.
2. A device for measuring various objects in an accurate and precise manner.
3. In medicine and biology, the term is usually used with reference to a glass slide or lens that is accurately marked for measuring microscopic forms.
Synonym(s): micrometre.
[micro- + G. metron, measure]

micron,

micron

pl. micra, microns [Gr.] micrometer; one thousandth (10−3) of a millimeter or one millionth (10−6) of a meter; abbreviated μm.
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