Ma'anar ƙamus na kalmar "ƙarƙashin Ornithomimida" shine kamar haka:Ma'anar Ornithomimida rukuni ne na dinosaurs mai kama da tsuntsaye waɗanda suka rayu a lokacin Late Cretaceous. Wadannan dinosaurs an siffanta su da dogayen kafafunsu masu sirara, kananan kawunansu, bakunansu marasa hakori, da dogayen hannaye masu siririn hannu masu kaifi. Sun kasance masu komi, suna ciyar da tsire-tsire da ƙananan dabbobi. Iyalin Ornithomimidae shine kawai sanannen memba na wannan yanki kuma ya haɗa da wasu shahararrun dinosaur, kamar Ornithomimus da Gallimimus.