Meaning & use

Millionths

noun·Academic

Last updated

The fractional parts each equal to one part in a million of a whole; plural of millionth.

See it in a sentence

Engineers measured the tolerance of the component in millionths of an inch.

The instrument could detect changes as small as a few millionths of a degree.

A note on using this word

'Millionths' commonly appears in scientific and engineering contexts requiring extremely fine precision, such as chemistry's 'parts per million.'

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