diameter

Other Definitions
diameter (enc)

Noun	1.	diameter - the length of a straight line passing through the center of a circle and connecting two points on the circumference diam radius, r - the length of a line segment between the center and circumference of a circle or sphere caliber, calibre, bore, gauge - diameter of a tube or gun barrel windage - bore-to-projectile difference in diameter length - the linear extent in space from one end to the other; the longest horizontal dimension of something that is fixed in place; "the length of the table was 5 feet"
	2.	diameter - a straight line connecting the center of a circle with two points on its perimeter (or the center of a sphere with two points on its surface) straight line - a line traced by a point traveling in a constant direction; a line of zero curvature; "the shortest distance between two points is a straight line"

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