millimetre

See also: millimétré, millimètre, milli-metre, and mil·límetre

English

Alternative forms

• millimeter (US)
• millimètre (rare)

Etymology

From French millimètre, equivalent to milli- +‎ metre.

Pronunciation

• Audio (US):

  (file)

Noun

millimetre (plural millimetres)

2. An SI/MKS unit of measure, the length of ¹⁄₁₀₀₀ of a metre. Symbol: mm

   Synonyms: mm, ㎜; mil (informal), mill (informal)

   Holonyms: centimetre < decimetre < metre < kilometre < megametre < gigametre < terametre < petametre

   Meronyms: picometre < nanometre < micrometre

   • 2025 August, “The International System of Units (SI)”, in Bureau International des Poids et Mesures‎^[1], archived from the original on 17 September 2025, page 147:

     It is not permissible to use abbreviations for unit symbols or unit names, such as sec (for either s or second), sq. mm (for either mm² or square millimetre), cc (for either cm³ or cubic centimetre), or mps (for either m/s or metre per second).

Derived terms

• cubic millimetre
• micromillimetre
• millimetre of mercury
• Millimetternich
• submillimetre

Related terms

• millimetric

Translations

unit of measure

• Arabic: مِلِّيمِتْر m (millīmitr)
• Armenian: միլիմետր (hy) (milimetr)
• Asturian: milímetru m
• Azerbaijani: millimetr
• Belarusian: мілімэ́тар m (milimétar)
• Bulgarian: милиме́тър (bg) m (milimétǎr)
• Burmese: မီလီမီတာ (my) (milimita)
• Catalan: mil·límetre (ca) m
• Chinese:

  Cantonese: 毫米 (hou⁴ mai⁵), 公釐 / 公厘 (gung¹ lei⁴)

  Hakka: 毫米 (hò-mí), 米釐米特 / 米厘米特 (mi-li-mi-tèr)

  Hokkien: 毫米 (zh-min-nan) (hô-bí), 公釐 / 公厘 (kong-lî)

  Mandarin: 毫米 (zh) (háomǐ), 公釐 / 公厘 (gōnglí)

• Czech: milimetr (cs) m
• Danish: millimeter (da) c
• Dutch: millimeter (nl)
• Esperanto: milimetro
• Estonian: millimeeter
• Faroese: millimetur m
• Finnish: millimetri (fi)
• French: millimètre (fr) m
• Galician: milímetro (gl) m
• Georgian: მილიმეტრი (milimeṭri)
• German: Millimeter (de) m
• Greek: χιλιοστόμετρο (el) n (chiliostómetro)
• Hindi: मिलीमीटर n (milīmīṭar), सहस्रिमान n (sahasrimān)
• Hungarian: milliméter (hu)
• Icelandic: millimetri (is) m
• Ido: milimetro (io)
• Ingrian: millimetra
• Interlingua: millimetro
• Italian: millimetro (it) m
• Japanese: ミリメートル (ja) (mirimētoru), ミリ (ja) (miri)
• Khmer: មិល្លីម៉ែត្រ (km) (millii-maet)
• Korean: 밀리미터 (ko) (millimiteo), 밀리 (milli)
• Lao: ມິລິແມັດ (lo) (mi li mæt)
• Latvian: milimetrs
• Lithuanian: milimetras (lt)
• Lü: ᦙᦲᦟᦲᦙᦶᧆ (miiliimaed)
• Macedonian: милиме́тар m (milimétar)
• Malagasy: milimetatra (mg)
• Norwegian:

  Bokmål: millimeter (no) m

  Nynorsk: millimeter m

• Persian: میلی‌متر (milimetr)
• Polish: milimetr (pl) m
• Portuguese: milímetro (pt) m
• Romanian: milimetru (ro) m
• Russian: миллиме́тр (ru) m (millimétr)
• Sanskrit: सहस्रिमान n (sahasrimāna)
• Scottish Gaelic: milimeatair m
• Serbo-Croatian:

  Cyrillic: мѝлиметар m

  Latin: mìlimetar (sh) m

• Shan: မိလ္လိမႅတ်
• Slovak: milimeter m
• Slovene: milimeter m
• Spanish: milímetro (es) m
• Swahili: milimita
• Swedish: millimeter (sv) c
• Tagalog: milimetro
• Telugu: మిల్లీమీటరు (millīmīṭaru)
• Thai: มิลลิเมตร (th) (min-lí-méet)
• Turkish: milimetre (tr)
• Ukrainian: міліме́тр m (milimétr)
• Urdu: ملِیمیٹر m (milīmīṭar)
• Uyghur: مىللىمېتىر (millimëtir)
• Vietnamese: milimet
• Yiddish: מילימעטער m (milimeter)
• Yoruba: mìlímítà

Anagrams

• millimeter