tube

Definitions of tube in various dictionaries:

noun - conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases

noun - electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope

noun - a hollow cylindrical shape

noun - (anatomy) any hollow cylindrical body structure

noun - an electric railway operating below the surface of the ground (usually in a city)

verb - provide with a tube or insert a tube into

verb - convey in a tube

verb - ride or float on an inflated tube

verb - place or enclose in a tube

A hollow cylinder, especially one that conveys a fluid or functions as a passage.

An organic structure having the shape or function of a tube; a duct: a bronchial tube.

A small, flexible cylindrical container sealed at one end and having a screw cap at the other, for pigments, toothpaste, or other pastelike substances.

The cylindrical part of a wind instrument.

Electronics.

An electron tube.

A vacuum tube.

The lower, cylindrical part of a gamopetalous corolla or a gamosepalous calyx.

A subway; an underground.

A tunnel.

An inner tube.

Slang.

A television set.

To provide with a tube; insert a tube in.

To float down a stream or river for recreation in an inner tube: went tubing on Sunday afternoon.

verb - to provide with a tube (a long, hollow cylinder)