Dictionary

ornithischian

noun or·nith·is·chi·an \ˌr-nə-ˈthis-kē-ən\

Definition of ORNITHISCHIAN

:  any of an order (Ornithischia) of herbivorous dinosaurs (as a stegosaurus) that have the pubis of the pelvis rotated backward to a position parallel and close to the ischium — compare saurischian
ornithischian adjective
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Origin of ORNITHISCHIAN

New Latin Ornithischia, from ornith- + ischium
First Known Use: 1933

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