Also means
millimetre
Usage Note
Mm is the standard symbol for milímetro (millimetre). In written Spanish it appears after a space and without a period when following a number: 3 mm. As an SI symbol it is invariable, so mm serves for both milímetro and the plural milímetros.
Examples
"El grosor es de solo dos mm."
Natural Translation
The thickness is only two mm.
Related Words
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