OXFORD DICTIONARY
, n. & adj.
--n. any animal of the subphylum Vertebrata, having a spinal column, including mammals, birds, reptiles, amphibians, and fishes.
--adj. of or relating to the vertebrates.
L vertebratus jointed (as VERTEBRA)
THESAURUS
amphibian, aquatic, biped, canine, cannibal, carnivore, cetacean, chordate, cosmopolite, feline, gnawer, herbivore, insectivore, invertebrate, mammal, mammalian, marsupial, marsupialian, omnivore, primate, quadruped, reptile, rodent, ruminant, scavenger, ungulate, varmint, vermin