conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases | a long tube made of metal or plastic that is used to carry water or oil or gas etc. |
an electric railway operating below the surface of the ground (usually in a city) | a tube with a small bowl at one end; used for smoking tobacco |
electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope | the flues and stops on a pipe organ |
(anatomy) any hollow cylindrical body structure | a tubular wind instrument |
a hollow cylindrical shape | a hollow cylindrical shape |