a duct with cartilaginous walls
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)
