: 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

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At a fossil site in northwestern Canada called Raven’s Throat River, the mudstone still holds 500-million-year-old coprolites, some as wide as five centimeters, along with complete fossils of trilobites and mollusk-like hyoliths with conical shells. ArsTechnica, 12 Aug. 2026 The system could bring rainfall totals of 5 to 10 inches (13 to 25 centimeters) in the island chain, with up to 20 inches (51 centimeters) possible, forecasters said. ABC News, 12 Aug. 2026 Forecasts from the Federal Waterways and Shipping Administration show the level could fall to 9 centimeters by Saturday. Bloomberg, Fortune, 11 Aug. 2026 The antenna is extremely lightweight, and the team miniaturized it to be both the right size and shape to fit the tiny helicopters, which sit just 6 inches (15 centimeters) above the ground at rest. Chelsea Gohd, Space.com, 7 Aug. 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 16 Aug. 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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