millimeter
noun
mil·li·me·ter
ˈmi-lə-ˌmē-tər 
variants
US millimeter
or British millimetre
: a unit of length equal to ¹/₁₀₀₀ meter see Metric System Table
Examples of millimeter in a Sentence
Recent Examples on the Web
Research over the past several years has identified these particles — fragments of plastic less than 5 millimeters in diameter — just about everywhere, in nature and in people’s bodies.
—
Joseph Winters / Grist, Popular Science, 23 May 2024
The standard had been a grid of 96 pins, called the Utah Array, that rests on the top of the brain and picks up activity up to 1.5 millimeters below the surface.
—Christina Jewett, New York Times, 22 May 2024
See all Example Sentences for millimeter 
Joseph Winters / Grist, Popular Science, 23 May 2024
The standard had been a grid of 96 pins, called the Utah Array, that rests on the top of the brain and picks up activity up to 1.5 millimeters below the surface.
—Christina Jewett, New York Times, 22 May 2024
See all Example Sentences for millimeter
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'millimeter.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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“Millimeter.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/millimeter. Accessed 1 Jun. 2024.
Copy CitationKids Definition
millimeter
noun
mil·li·me·ter
ˈmil-ə-ˌmēt-ər
: a measure of length equal to ¹⁄₁₀₀₀ meter see metric system table
Medical Definition
millimeter
noun
mil·li·me·ter
variants
or chiefly British millimetre
: one thousandth of a meter
—abbreviation mm
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