a photoelectric device for intensifying faint astronomical images

A device in some early internal combustion engines that ignited the fuel/air mixture in a tube heated by a flame

plural of Fallopian tube

An inflatable rubber tube inserted into the casing of a pneumatic tyre/tire.

A phototube in which an electric current flows when a certain illumination is reached; used as a relay

(electronics) A type of electron tube that controls electron current through vacuum between electrodes within a sealed container, usually of glass or metal and often designed to be easily installed in and removed from the equipment in which it is used.

(physics) Any of several electronic devices that control electron current through vacuum, gas or vapor between electrodes within a sealed container, usually of glass or metal and often designed to be easily installed in and removed from the equipment in which it is used.

plural of vacuum tube

Alternative letter-case form of Fallopian tube

(aviation) A pressure measuring instrument used to measure fluid flow velocity, especially used to determine the airspeed of an aircraft.