From The Collaborative International Dictionary of English v.0.48 :
Himantopus \Himantopus\ n.
one of two genera of stilts; they are similar to avocets but
with straight bills.
Syn: genus Himantopus.
[WordNet 1.5]
From WordNet (r) 3.0 (2006) :
Himantopus
n 1: major one of two genera of stilts; similar to avocets but
with straight bills [syn: Himantopus, genus Himantopus]