2 definitions found From WordNet (r) 2.0 [wn]: centrum noun: the main body of a vertebra [also: {centra} (pl)] From The Collaborative International Dictionary of English v.0.44 [gcide]: Centrum \Cen"trum\, noun; pl. E. {Centrums}, L. {Centra}. [L., center.] (Anat.) The body, or axis, of a vertebra. See {Vertebra}.

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