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From The Collaborative International Dictionary of English v.0.48:
Vertebrate \Ver"te*brate\, Vertebrated \Ver"te*bra`ted\, a. [L. vertebratus.] 1. (Anat.) Having a backbone, or vertebral column, containing the spinal marrow, as man, quadrupeds, birds, amphibia, and fishes. [1913 Webster] 2. (Bot.) Contracted at intervals, so as to resemble the spine in animals. --Henslow. [1913 Webster] 3. (Zool.) Having movable joints resembling vertebrae; -- said of the arms of ophiurans. [1913 Webster] 4. (Zool.) Of or pertaining to the Vertebrata; -- used only in the form vertebrate. [1913 Webster]