millimètre

millimetre

noun mee-lee-MET-r Rare

Usage Note

Millimètre is one thousandth of a metre. The colloquial phrase au millimètre (to the millimetre) means with extreme precision — calculer au millimètre (to calculate to the millimetre) suggests meticulous accuracy. In French, decimal measurements use a comma: 2,5 mm not 2.5 mm.

Examples

"Ce joint fait deux millimètres d'épaisseur."

Natural Translation

This seal is two millimetres thick.

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