The length of a straight line that extends from one edge of a tumor or other object, through its center and to the opposite edge. It is usually used to measure the size of round or spherical shapes.

The distance across a circle through the center is called the diameter.

late 14c., from Old French diametre, from Latin diametrus, from Greek diametros (gramme) "diagonal of a circle," from dia- "across, through" (see dia-) + metron "a measure&quo [..]

a straight line passing through the centre of a circle to touch both sides of the circumference.

The line segment joining two points on a circle and passing through the center of the circle.

width of a circle.

The distance from one side of a circle to the other measured through the center. For telescopes, the diameter of a lens or mirror is measured from one side to the opposite side, passing through the ce [..]

Width across the round opening of tubing. Inside diameter (ID) and outside diameter (OD) are both used to find the measurement of tubing. It is vital to know what your tubing diameters are so you can [..]

the length of a straight line passing through the center of a circle and connecting two points on the circumference In the mathematical field of graph theory, the distance between two vertices in a gr [..]

a straight line drawn from one side of a circle to the other, passing through the centre

The distance from one side of a circle to the other measured through the center. For telescopes, the diameter of a lens or mirror is measured from one side to the opposite side, passing through the ce [..]

A line segment joining two points on a circle and passing through the center of the circle.

diameter (pop)

The distance across a circle which passes through the centre.

A straight line measurement passing from side to side through the centre of a body or figure, especially a circle or sphere.

A segment that goes from one point on a circle through the center of the circle to another point on the circle. Also, diameter is used to indicate the length of this segment. In this circle, segment A [..]

(n) the length of a straight line passing through the center of a circle and connecting two points on the circumference(n) a straight line connecting the center of a circle with two points on its peri [..]

The distance from one point of a circle's or sphere's circumference to another when passing through the center point (Lesson 29)

A straight line passing through the center of a circle, and ending on both edges. Equal to 2 times the Radius.

N M diameter

The measure of a diamond's girdle, or its widest perimeter

indicates a circular feature when used on the field of a drawing or indicates that the tolerance is diametrical when used in a feature control frame.

        Defined as the maximum radius of one blade multiplied by 2.         The diameter of the circle scribed by the blade tips as the propeller rotates.             General rules:                 Di [..]

Diameter is an authentication, authorization and accounting (AAA) protocol used by computer networks. It defines the minimum requirements that an AAA protocol must support and was built to surpass and [..]

The length of a straight line that extends from one edge of a tumor or other object, through its center and to the opposite edge. It is usually used to measure the size of round or spherical shapes.

A measurement across the width of the hair.

The distance from one side of a circle to the other measured through the center. For telescopes, the diameter of a lens or mirror is measured from one side to the opposite side, passing through the center.

See Circle. In a regular polygon with an even number of sides a line joining the centres of two opposite sides is often called a diameter.