brachiosaur

[ brey-kee-uh-sawr, brak-ee- ]
/ ˈbreɪ ki əˌsɔr, ˈbræk i- /

noun

a huge sauropod dinosaur of the genus Brachiosaurus, having a small head with nostrils on a knob above the eyes, long forelegs, and a sloping, massive body, and reaching a length of about 80 feet (24 meters).

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Origin of brachiosaur

<New Latin Brachiosaurus (1903); see brachio-, -saur; so named in allusion to the unusual length of the humerus relative to the femur
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020