ˈtrōəˌdän noun
Usage: capitalized
Etymology: New Latin, from tro- (probably from Greek trōgein to gnaw) + -odon — more at terse
: a genus (the type of the family Troödontidae) of aberrant Upper Cretaceous No. American ornithopod dinosaurs with the skull expanded above into an enormous rugose bony dome ornamented with prongs and spikes