electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope
any of various fruit bats of the genus Nyctimene distinguished by nostrils drawn out into diverging tubes
conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases
electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope
(anatomy) any hollow cylindrical body structure
an electric railway operating below the surface of the ground (usually in a city)
