The Collaborative International Dictionary of English v.0.48:

Epimachus \E*pim"a*chus\ ([-e]*p[i^]m"[.a]*k[u^]s), prop. n.
   [NL., fr. Gr. 'epi`machos equipped for battle; 'epi` for +
   ma`chh battle.] (Zo["o]l.)
   A genus of highly ornate and brilliantly colored birds of
   Australia, allied to the birds of Paradise.
   [1913 Webster]