Pronunciation: (vûr'tu-brit, -brāt"), [key]
1. having vertebrae; having a backbone or spinal column.
2. belonging or pertaining to the Vertebrata (or Craniata), a subphylum of chordate animals, comprising those having a brain enclosed in a skull or cranium and a segmented spinal column; a major taxonomic group that includes mammals, birds, reptiles, amphibians, and fishes.
a vertebrate animal.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.