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
Trump survived by millimeters a would-be assassin’s bullet at a rally in Butler, Pennsylvania.
—
Bill Barrow, Fortune, 4 Nov. 2024
The walls are lined with 50 millimeter fiberglass insulation cotton, providing great thermal and sound insulation.
—Toni Sutton, People.com, 2 Nov. 2024
Pitt’s pilot, Phillip McKenzie, has two motor arrays implanted in his brain, each the size of a pencil eraser, with 100 electrode tips that go a millimeter and a half into the brain.
—Dana MacKenzie, Smithsonian Magazine, 23 Oct. 2024
Micrometeoroids are minuscule pieces of dust, molecules to millimeters in scale, that drift through space.
—Jonathan O’Callaghan, Discover Magazine, 21 Oct. 2024
See all Example Sentences for millimeter 
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Bill Barrow, Fortune, 4 Nov. 2024
The walls are lined with 50 millimeter fiberglass insulation cotton, providing great thermal and sound insulation.
—Toni Sutton, People.com, 2 Nov. 2024
Pitt’s pilot, Phillip McKenzie, has two motor arrays implanted in his brain, each the size of a pencil eraser, with 100 electrode tips that go a millimeter and a half into the brain.
—Dana MacKenzie, Smithsonian Magazine, 23 Oct. 2024
Micrometeoroids are minuscule pieces of dust, molecules to millimeters in scale, that drift through space.
—Jonathan O’Callaghan, Discover Magazine, 21 Oct. 2024
See all Example Sentences for millimeter
Dictionary Entries Near millimeter
Cite this Entry
“Millimeter.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/millimeter. Accessed 22 Nov. 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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