zeroth law of thermodynamics(redirected from Zeroth law)
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Related to Zeroth law: first law of thermodynamics
zeroth law of thermodynamics[¦zir‚ōth ‚lȯ əv ‚thər·mō·dī′nam·iks]
A law that if two systems are separately found to be in thermal equilibrium with a third system, the first two systems are in thermal equilibrium with each other, that is, all three systems are at the same temperature.