an empty cigarette consisting of a filter attached to a paper tube. / a tubular filter

A tube for conveying speech, especially from one room to another at a distance.

A small cylindrical vessel used to heat substances in the flame of a Bunsen burner.

plural of boiling tube

A tube for withdrawing a sample of liquid from a cask.

The procedure of tying the Fallopian tubes for the purpose of contraception.

The cardboard tube at the centre of a roll of toilet paper.

plural of toilet tube

A glass tube for selecting a microscopic object in a fluid.

plural of fishing-tube