micrometer

B2 Topic:Tools, Machines & Construction

US /maɪˈkɹɑmɪtəɹ/ UK /maɪˈkɹɒmɪtə/ See IPA manual

Freq #133743

Meanings

1

noun
A tool for measuring very small distances, such as thickness or diameter, with great precision.

The engineer used a micrometer to check the thickness of the metal sheet.
2

noun
A unit of length equal to one millionth of a metre.

A human hair is about seventy micrometers wide.

Thesaurus

Synonyms

1 noun · a tool for measuring very... micrometer calipermicrometer gauge

2 noun · a unit of length equal to... micron

Word family

Forms micrometers

Appears in

Phrases (1)

See all

micrometer gauge
a precision measuring instrument for determining very small distances or dimensions

Noun + noun

Etymology

From micro- (“one millionth”) + meter.

Topics

Tools, Machines & Construction

External links

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