Entry 5 senses · 2 variants Webster, 1913 Vertebrate /vẽrt'-əb-rātˌ/ · Ver·te·brate · IPA /ˈvɛɹ.tɪ.bɹeɪt/ n. a. 01 n. One of the Vertebrata. 1. One of the Vertebrata.(Zool.) 02 a. Having a backbone, or vertebral column, containing the spinal marrow, as man, quadrupeds, birds, amphibia, and fishes. 1. Having a backbone, or vertebral column, containing the spinal marrow, as man, quadrupeds, birds, amphibia, and fishes.(Anat.) 2. Contracted at intervals, so as to resemble the spine in animals.(Bot.) 3. Having movable joints resembling vertebrae; -- said of the arms of ophiurans.(Zool.) 4. Of or pertaining to the Vertebrata; -- used only in the form vertebrate.(Zool.)