conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases | a turn made in skiing; the back of one ski is forced outward and the other ski is brought parallel to it |
an electric railway operating below the surface of the ground (usually in a city) | front part of a vessel or aircraft |
electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope | the tube of a tobacco pipe |
(anatomy) any hollow cylindrical body structure | cylinder forming a long narrow part of something |
a hollow cylindrical shape | (linguistics) the form of a word after all affixes are removed |
| a slender or elongated structure that supports a plant or fungus or a plant part or plant organ |