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From micro- + millimetre.
Etymology from Wiktionary, CC BY-SA 4.0.
micromillimetre
mi·cro·mil·li·me·treToday it means: Synonym of nanometre. Full definition →
Today it means: Synonym of nanometre. Full definition →
From micro- + millimetre.
Etymology from Wiktionary, CC BY-SA 4.0.