Search Result for "zeroth law of thermodynamics":
Wordnet 3.0

NOUN (1)

1. the law that if two bodies are in thermal equilibrium with a third body then the first two bodies are in thermal equilibrium with each other; 



WordNet (r) 3.0 (2006):

zeroth law of thermodynamics
    n 1: the law that if two bodies are in thermal equilibrium with
         a third body then the first two bodies are in thermal
         equilibrium with each other