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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.

Saturn's magnetosphere is enormous, extending to more than 10 times the planet's diameter.

From Science Daily • Apr. 3, 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

The prizes have a diameter of just over 3 inches and are less than half an inch thick.

From The Wall Street Journal • Feb. 10, 2026

The device measures approximately 10 cm in diameter and 30 cm long and has a red anodised finish.

From BBC • Feb. 6, 2026

Four feet in diameter, the round concrete wall sticks two feet out of the ground.

From "First They Killed My Father: A Daughter of Cambodia Remembers" by Loung Ung