Micrometer

usgb/maɪˈkrɑːmɪtər/
noun

A tool used to measure very small sizes, like thickness or diameter, with extreme accuracy.

The machinist used a micrometer to measure the diameter of the metal rod.
Visual representation of "micrometer" - A tool used to measure very small sizes, like thickness or diameter, with extreme accuracy

Often appears as...

  • use a micrometer
  • read a micrometer

Usage tips

Technical

Definition 1 of 2
Visual representation of "micrometer"
LampPro Tip 1/3

Precision Tool

The micrometer is all about precision and is common in engineering where exact measurements are critical.

Illustration for Precision Tool
She carefully adjusted the micrometer for a precise measurement.
LampPro Tip 2/3

Measurement Context

A micrometer is not for rough measurements; it's for when you need to be highly accurate, to one thousandth of a millimeter.

Illustration for Measurement Context
Use a micrometer when you need to confirm the exact size of a component.
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Not a Ruler

Don't confuse a micrometer with common measuring tools like rulers; it's for much smaller dimensions.

Illustration for Not a Ruler
He switched from a ruler to a micrometer for the fine details.
Visual representation of the word "Micrometer"

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