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Definition of ornithischian

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or·nith·is·chi·an  audio  (ôrn-thsk-n) KEY 

NOUN:
A dinosaur of the order Ornithischia, having a pelvic structure similar to that of birds.
ADJECTIVE:
Of, belonging to, or characteristic of the order Ornithischia.
ETYMOLOGY:
From New Latin Ornthischia, order name : ornith(o)- + Greek iskhion, hip joint


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