|d(y)üˌl]ȯŋənpəˈtēz-, d(y)ü|l] noun
Usage: usually capitalized D&P
Etymology: after Pierre L. Dulong died 1838 and Alexis T. Petit died 1820 French physicists
: a law in physics and chemistry: the atomic heats of most solid elements are nearly the same averaging a little over 6 calories per degree C per gram atom