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rolamite

[ roh-luh-mahyt ]
/ ˈroʊ ləˌmaɪt /
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noun
(sometimes initial capital letter) a simple, almost frictionless mechanism consisting of a flexible metal band formed in an S-shaped loop around moving rollers: used in innumerable devices, including thermostats, odometers, brakes, and electromechanical weapons.
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Origin of rolamite

First recorded in 1965–70; from rol(l) and an unknown element; invented by Donald F. Wilkes, U.S. engineer (born 1931) and patented by him in 1969
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
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