Diameter

usgb/daɪˈæmɪtər/
noun

The distance or line through the center of something from one side to the other.

The diameter of the circle is 10 centimeters.
Visual representation of "diameter" - The distance or line through the center of something from one side to the other.

Often appears as...

  • circle diameter
  • tube diameter
Definition 1 of 4
Visual representation of "diameter"
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Visualize Measurement

Imagine cutting through an object's center; 'diameter' is that end-to-end line.

Illustration for Visualize Measurement
Picture a pizza; its diameter runs from crust to crust through the middle.
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Not Just Circles

'Diameter' can describe the width of various objects, not only perfect circles.

Illustration for Not Just Circles
The diameter of this round table is 1.2 meters.
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Two Times Radius

The diameter is always twice the length of the radius.

Illustration for Two Times Radius
If the radius is 5 cm, the diameter is 10 cm.
Visual representation of the word "Diameter"

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