tube

The metal tubes lining manholes popped out of the pavement as the ground around them sank and settled.

He just needed to learn all about the sorts of wood used to make guitars, and to buy guitars and tubes and amps.

She declares herself a powerful deity and explains that God is essentially a “tube” that constantly ingests and secretes experiences and things.

In one of Halt's buildings they have a huge machine called an autoclave, consisting mainly of two large horizontal tubes.

Three hours later Gagarin, Titov, and Korolev sat together for a breakfast of Soviet space food—brown paste from a tube.