The Collaborative International Dictionary of English v.0.48:

Anourous \An*ou"rous\, a.
   See Anurous.
   [1913 Webster] anoxemia

The Collaborative International Dictionary of English v.0.48:

Anurous \A*nu"rous\, a. (Zool.)
   Destitute of a tail, as the frogs and toads. [Also written
   anourous.]
   [1913 Webster]