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pyrometric cone

American

noun

(in a kiln) a triangular piece of material that indicates by bending or melting that a certain temperature has been reached.

Etymology

Origin of pyrometric cone

First recorded in 1945–50

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.