Of or pertaining to a type of electrical wiring consisting of insulated conductive copper wire affixed by porcelain hardware and protected in vulnerable areas by insulated cloth sleeving. Widely used in North America during the late 19th and early 20th centuries.

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.

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.

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

A small tube used in a laboratory for holding small volumes.

fulgurite