noun

mm

millimetre, mm

The screw is 5 mm long.

The screw is 5 mm long.

((number mm)) a unit of length The screw is 5 mm long.

Synonyms: millimeter

Abbreviation for 'millimetre', from Latin 'milli-' (thousandth) + 'meter'.

'mm' stands for 'milli-meter'. Remember it as one-thousandth of a meter.

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