(US, telephony) A system of telephone dialing in which each digit is transmitted as the equivalent number of pulses.

(US, telephony) A system of telephone dialing in which each digit is transmitted as a tone or combination of tones of specific pitch.

(physics, chemistry) A graph, with axes representing temperature and pressure, showing the equilibrium conditions for a given substance to be a solid, liquid or gas.

(US, telephony) A system of telephone dialing in which each digit is transmitted as a burst of a single audio frequency.

The ability to make an external telephone call to an internal extension within an organization.

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) Exhibiting diamagnetism; repelled by a magnet.

Any substance that exhibits diamagnetism.

(physics) A pictorial representation of the interactions of subatomic particles, showing their paths in space and time as lines, and their interactions as points where lines meet.