: a unit of length equal to 1/100 meter see Metric System Table

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In the metric system, which is used in most countries of the world, each basic unit of measure of length, area, or volume can be divided into centimeters. A meter consists of 100 centimeters, a square meter consists of 10,000 square centimeters, and a cubic meter consists of 1,000,000 cubic centimeters.

Examples of centimeter in a Sentence

Recent Examples on the Web
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Right now, nearly one million fragments of metal, paint, and shattered rocket parts larger than a single centimeter are tearing through Earth’s orbit at extreme speeds. Mrigakshi Dixit, Interesting Engineering, 9 Sep. 2026 Rainfall totals could reach up to 24 inches (60 centimeters) in some areas on Kauai. ABC News, 8 Sep. 2026 Finally, the researchers tested their system using real blocks, each a few centimeters across, with circuitry inside that ran computations locally. Matthew Hutson, Scientific American, 6 Sep. 2026 Neutral hydrogen emits a faint radio signal that astronomers call the 21-centimeter line. Robert Lea, Space.com, 4 Sep. 2026 See All Example Sentences for centimeter

Word History

First Known Use

1794, in the meaning defined above

Time Traveler
The first known use of centimeter was in 1794

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Cite this Entry

“Centimeter.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/centimeter. Accessed 12 Sep. 2026.

Kids Definition

: a unit of length equal to ¹⁄₁₀₀ meter see metric system

Medical Definition

centimeter

noun
cen·​ti·​me·​ter
: a unit of length equal to 1/100 meter
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