Any right line passing through the center of a figure or body, as a circle, conic section, sphere, cube, etc., and terminated by the opposite boundaries; a straight line which bisects a system of parallel chords drawn in a curve.

The length of a straight line through the center of an object from side to side; width; thickness; as, the diameter of a tree or rock.

The distance through the lower part of the shaft of a column, used as a standard measure for all parts of the order. See Module.

A straight line passing through the centre of a cylinder or disc and terminated by its boundary.

The width of the diamond, as measured across the widest part of the girdle.

noun Width of a wheel measured through its center, in millimeters (mm). E.g., 72mm.

The measure through a circular object at its greatest width. In paperweights, it is the common measure of size.

The width measurement of round logs. Usually made in the centre of a log and under bark (CDUB). Forestry Victoria

AAA ƒvƒƒgƒRƒ‹B

A next-generation AAA protocol.

IETF protocol that can be used for authentication, authorization, and accounting purposes. Successor of RADIUS. See also: RADIUS

A protocol developed by the IETF to replace the RADIUS protocol. It is currently in IETF Internet Draft status.

The outside diameter of the roll.

The nominal inside diameter of an extrusion or injection barrel. See 'Bore'

The nominal outside diameter of a screw. See 'Flight Land'