Definition of millimeter
: a unit of length equal to 1⁄1000 meter — see metric system table
Recent Examples of millimeter from the Web
Losing that barrier and unleashing the glaciers would on its own raise global sea levels by a few millimeters, scientists say -- nearly equaling the rise the world typically sees each year due to climate change.
The harsh summer sun cast a shadow over my tools, which were anchored in a crevice only millimeters deep.
Yet for the enormity of the colony, the individuals within it are not especially giant and may be downright tiny, ranging from 10 inches to just a few millimeters.
Step 2: On a lightly floured work surface, roll out dough to form a circle about 13 inches/33 centimeters wide and 1 / 8inch/2 millimeters thick.
One big target is the International Space Station, which routinely takes hits from sub-millimeter sized particles and actively dodges larger bits multiple times each year.
Today, that land is still sinking by about a millimeter per year.
The tiny, aphid-like adelgid — oval-shaped, dark gray females are only about 1 millimeter long — is native to Japan, and was inadvertently transported to the U.S. in the 1950s.
These needles are typically 2.8, 2.1 or 1.7 millimeters in diameter.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'millimeter.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of millimeter
French millimètre, from milli- + mètre meter
First Known Use: 1797See Words from the same year
MILLIMETER Defined for English Language Learners
Definition of millimeter for English Language Learners
: a length equal to 1/1000 meter
MILLIMETER Defined for Kids
Definition of millimeter for Students
: a unit of length equal to 1/1000 meter
Medical Definition of millimeter
: one thousandth of a meter—abbreviation millimeter
Seen and Heard
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