A traditional telephony system based on analog transmission of sound, as opposed to newer alternatives like ISDN or VoIP.

A house with multiple attachments connected serially, decreasing in size.

A torture device for giving electric shocks, designed using parts from an old-fashioned crank telephone.

A type of reflecting telescope using a concave primary mirror and a flat diagonal secondary mirror.

A telescope in which the medium between the objective and the eyepiece is water instead of air, used in some experiments involving aberration. / A telescope devised for looking into a body of water.

An adjustable travelling bag consisting of two cases, the larger slipping over the other.

plural of telescope bag

plural of telegraph pole

plural of telephoto lens

(medicine, robotics) Assistance provided by means of a telecommunication system.