ˌ ̷ ̷ ̷ ̷ˈsȯrəs noun
Usage: capitalized
Etymology: New Latin, from hadr- + -saurus
: a genus (the type of a family Hadrosauridae) of heavy herbivorous dinosaurs found in the Cretaceous of No. America that attained a length of over thirty feet and had a large head with a broad bill like that of a duck and numerous small teeth