The Collaborative International Dictionary of English v.0.48:
Apus \A"pus\, n. [NL., fr. Gr. ?. See Apode, n.] (Zool.) A genus of fresh-water phyllopod crustaceans. See Phyllopod. [1913 Webster]WordNet (r) 3.0 (2006):
Apus n 1: a constellation in the polar region of the southern hemisphere near Octans 2: type genus [syn: Apus, genus Apus]