vulcanized fiber

noun

1. a leatherlike substance made by compression of layers of paper or cloth that have been treated with acids or zinc chloride, used chiefly for electric insulation.

Word History and Origins

Origin of vulcanized fiber¹

First recorded in 1870–75

Example Sentences

This mode of connection is more flexible than a short length of heavy cable, and looks well, the wires being held neatly together by vulcanized fiber bridges.

From Project Gutenberg

Slips of insulating material are laid between the coils and the dovetailed mouths of the grooves are closed with bone or vulcanized fiber, or other dielectric.

From Project Gutenberg