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Definitions

diameter

[dahy-am-i-ter] / daɪˈæm ɪ tər /
NOUN
measurement across object
Synonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In January, a 72-inch diameter pipe ruptured, spewing 243 million gallons of raw sewage into the Potomac River in one of the worst wastewater spills in U.S. history.

From The Wall Street Journal • Apr. 20, 2026

“I think it was a 10-foot diameter ... everything kind of flowed back from that.”

From Los Angeles Times • Apr. 10, 2026

With a steady hand, she manoeuvred a huge wind turbine section, five metres in diameter, across the yard.

From Barron's • Mar. 7, 2026

They are considered harmless to humans and are predominantly found sitting in large webs often more than a metre in diameter.

From BBC • Feb. 10, 2026

Because the Martian atmosphere is only 1 percent as dense as the Earth’s, a very large parachute, eighteen meters in diameter, was deployed to slow the spacecraft as it entered the thin air of Mars.

From "Cosmos" by Carl Sagan




Vocabulary lists containing diameter