(geometry) Any straight line between two points on the circumference of a circle that passes through the centre/center of the circle. / (geometry) The length of such a line.

A female given name from English of modern usage, from the name of the gem. / A surname.

A surname from German.

The outermost or largest diameter of something that has multiple circular, cylindrical, or helical features (e.g. a screw or gear)

The innermost diameter of a cylindrical, circular, or helical feature, such as a screw thread, gear teeth, etc.

Directly opposing. / Of or relating to a diameter; diametral.

A modern, upright bicycle shape or design, as distinguished from a penny-farthing bicycle, a recumbent, etc.

(physics) a weak form of magnetism that is only observed in the presence of an external magnetic field; due to an induced magnetic field in an opposite direction

(physics) Exhibiting diamagnetism; repelled by a magnet.

Any substance that exhibits diamagnetism.