Webster's Revised Unabridged Dictionary · 1913

Vertebrate

Vertebrate , noun

(Zoology) One of the Vertebrata.

Vertebrate , adjective

[Latin vertebratus.]

1.
(Anatomy) Having a backbone, or vertebral column, containing the spinal marrow, as man, quadrupeds, birds, amphibia, and fishes.
2.
(Botany) Contracted at intervals, so as to resemble the spine in animals. — Henslow
3.
(Zoology) Having movable joints resembling vertebrae; -- said of the arms of ophiurans.
4.
(Zoology) Of or pertaining to the Vertebrata; -- used only in the form vertebrate.

Also: Vertebrated