knob and tube

Adjective

Meaning

knob and tube (not comparable)

Alternative form of knob-and-tube

knob-and-tube (not comparable)

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.

Alternative names

knob-and-tube

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