Proper noun
Dulong (plural Dulongs)
A surname from French.
DULONG, Marie Evangeline “Eva”, age 83, passed away April 15, 2018 at Nakile Home for Special Care. Source: Internet
Péclet became, in 1812, one of the first students of the École Normale in Paris with Gay-Lussac and Dulong being his professors. Source: Internet