单词	diameter
释义	English American diameternoun [ C or U ] uk/daɪˈæm.ɪ.tər/us/daɪˈæm.ə.t̬ɚ/ (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. The pond is six feet in diameter. Thesaurus: synonyms and related words Geometry: parts of geometrical shapes angle axes circumference corresponding sides crosswise frustum hemisphere hypotenuse inclination line line segment node perimeter plane quadrant radius section side sin 1 See more results » 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.
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