1

micrometer

noun mi·crom·e·ter \ mī-ˈkrä-mə-tər \

Definition of micrometer

1 : an instrument used with a telescope or microscope for measuring minute distances
2 : a caliper for making precise measurements that has a spindle moved by a finely threaded screw

Illustration of micrometer

Origin and Etymology of micrometer

French micromètre, from micr- + -mètre -meter


2

micrometer

noun mi·cro·me·ter \ ˈmī-krō-ˌmē-tər \

Definition of micrometer

: a unit of length equal to one millionth of a meter called also micron; see Metric System Table

Origin and Etymology of micrometer

International Scientific Vocabulary micr- + 3meter


MICROMETER Defined for Kids

micrometer

noun mi·crom·e·ter \ mī-ˈkrä-mə-tər \

Definition of micrometer for Students

1 : an instrument used with a telescope or microscope for measuring very small distances
2 : an instrument having a rod moved by fine screw threads and used for making exact measurements

Medical Dictionary

1

micrometer

noun mi·crom·e·ter \ mī-ˈkräm-ət-ər \

medical Definition of micrometer

: an instrument used with a telescope or microscope for measuring minute distances

2

micrometer

noun mi·cro·me·ter
variants: or chiefly British micrometre play \ˈmī-krō-ˌmēt-ər\

medical Definition of micrometer

: micron


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