Defn: A comprehensive division of the animal kingdom, including all except the Vertebrata.
INVERTEBRATE
In*ver"te*brate, a. (Zoöl.)
Defn: Destitute of a backbone; having no vertebræ; of or pertaining to the Invertebrata. — n.
Defn: One of the Invertebrata. Age of invertebrates. See Age, and
Silurian.
INVERTEBRATED
In*ver"te*bra`ted, a.
Defn: Having no backbone; invertebrate.
INVERTED
In*vert"ed, a.
1. Changed to a contrary or counterchanged order; reversed; characterized by inversion.
2. (Geol.)
Defn: Situated apparently in reverse order, as strata when folded back upon themselves by upheaval. Inverted arch (Arch.), an arch placed with crown downward; — much used in foundations.