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  1. Dictionary
    diameter
    /dʌɪˈamɪtə/

    noun

    • 1. a straight line passing from side to side through the centre of a body or figure, especially a circle or sphere.
    • 2. a unit of linear measurement of magnifying power.

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    More definitions, origin and scrabble points

  2. dictionary.cambridge.org › dictionary › englishDIAMETER | English meaning - Cambridge Dictionary

    diameter. noun [ C or U ] uk / daɪˈæm.ɪ.tə r/ us / daɪˈæm.ə.t̬ɚ / Add to word list. (the length of) a straight line that reaches from one point on the edge of a round shape or object, through its centre, to a point on the opposite edge: The diameter measures twice the radius. in diameter The pond is six feet in diameter.

  3. www.merriam-webster.com › dictionary › diameterDiameter Definition & Meaning - Merriam-Webster

    The meaning of DIAMETER is a chord passing through the center of a figure or body. How to use diameter in a sentence.

  4. www.dictionary.com › browse › diameterDIAMETER Definition & Meaning | Dictionary.com

    Diameter definition: a straight line passing through the center of a circle or sphere and meeting the circumference or surface at each end.. See examples of DIAMETER used in a sentence.

  5. en.wikipedia.org › wiki › DiameterDiameter - Wikipedia

    In geometry, a diameter of a circle is any straight line segment that passes through the centre of the circle and whose endpoints lie on the circle. It can also be defined as the longest chord of the circle. Both definitions are also valid for the diameter of a sphere .

  6. dictionary.cambridge.org › us › dictionaryDIAMETER | definition in the Cambridge English Dictionary

    DIAMETER meaning: 1. (the length of) a straight line that reaches from one point on the edge of a round shape or…. Learn more.

  7. www.collinsdictionary.com › dictionary › englishDIAMETER definition and meaning | Collins English Dictionary

    The diameter of a circle or sphere is the length of a straight line through the middle of it. The tube is much smaller than the diameter of a human hair. American English : diameter / daɪˈæmɪtər /

  8. www.oxfordlearnersdictionaries.com › definition › englishdiameter noun - Definition, pictures, pronunciation and usage...

    diameter. noun. /daɪˈæmɪtə (r)/ /daɪˈæmɪtər/ a straight line going from one side of a circle or any other round object to the other side, passing through the centre. The diameter of the tree trunk was more than a metre. in diameter The dome is 42.3 metres in diameter. compare radius. Extra Examples.

  9. www.thefreedictionary.com › diameterDiameter - definition of diameter by The Free Dictionary

    1. a. a straight line passing through the center of a circle or sphere and meeting the circumference or surface at each end. b. a straight line passing from side to side of any figure or body, through its center. 2. the length of such a line.

  10. www.vocabulary.com › dictionary › diameterDiameter - Definition, Meaning & Synonyms | Vocabulary.com

    The diameter of a circle or sphere is a line that passes through the center and starts and ends and two opposite points on its perimeter or edge. The diameter is also the length of that line. In math class, teachers often ask you to use the diameter of a circle to find its area.

  11. dictionary.cambridge.org › dictionary › learner-englishDIAMETER | meaning - Cambridge Learner's Dictionary

    DIAMETER definition: a straight line that goes from one side of a circle to the other side and through the centre, or…. Learn more.