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TAKE THE QUIZsynsacrum
noun
syn·sacrum
"+
: a solidly fused series of vertebrae in the pelvic region in birds, dinosaurs, and pterosaurs comprising usually the last rib-bearing or thoracic vertebra, the two sacral vertebrae, and a varying number of caudal vertebrae compare sacrum
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Merriam-Webster unabridged
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- Namesake of the leotard, Jules Léotard had what profession?


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