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diameter

Syllabification: (di·am·e·ter)
Pronunciation: /dīˈamitər/

(abbreviation: diam.)
Translate diameter | into French | into German | into Italian | into Spanish
Definition of diameter

noun

  • 1a straight line passing from side to side through the center of a body or figure, especially a circle or sphere.
  • the length of the diameter of a figure, especially a circle or sphere.
  • a transverse measurement of something; width or thickness.
  • 2a unit of linear measurement of magnifying power.

Derivatives

diametral

Pronunciation: /-trəl/

adjective

Origin:

late Middle English: from Old French diametre, via Latin from Greek diametros (grammē) '(line) measuring across', from dia 'across' + metron 'measure'

Remember that diameter ends in -meter.

diameter in other Oxford dictionaries

Definition of diameter in the British & World English dictionary

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