Meaning of “diameter” in the English Dictionary

british dictionary

(Definition of “diameter” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"diameter" in American English

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diameternoun [ C/U ]

us /dɑɪˈæm·ɪ·t̬ər/

geometry the distance from one side to the opposite side of a circle, measured by a line passing through the center of the circle:

[ C ] We need a pipe with a diameter of about six inches.

(Definition of “diameter” from the Cambridge Academic Content Dictionary © Cambridge University Press)