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zeroth law of thermodynamics

American  
[zeer-ohth] / ˈzɪər oʊθ /

noun

  1. the principle that any two systems in thermal equilibrium with a third system are in thermal equilibrium with each other.

Etymology

Origin of zeroth law of thermodynamics

First recorded in 1955–60; zero + -th 2

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.