From WordNet (r) 2.0 (August 2003) [wn]:
Hirundo
n : type genus of the Hirundinidae [syn: Hirundo, {genus
Hirundo}]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Hirundo \Hi*run"do\, n. [L., swallow.] (Zool.)
A genus of birds including the swallows and martins.
[1913 Webster]