The Collaborative International Dictionary of English v.0.48:

Carabus \Car"a*bus\ (k[a^]r"[.a]*b[u^]s), n. [NL., fr. Gr.
   ka`rabos a horned beetle.] (Zool.)
   A genus of ground beetles, including numerous species. They
   devour many injurious insects.
   [1913 Webster]