From The Collaborative International Dictionary of English v.0.48 :
Cypraea \Cy*pr[ae]"a\ (s?-pr?"?), n. [NL.; cf. Gr. ???? a name
of Venus.] (Zool.)
A genus of mollusks, including the cowries. See Cowrie.
[1913 Webster]
From WordNet (r) 3.0 (2006) :
Cypraea
n 1: type genus of the family Cypraeidae: the typical cowries
[syn: Cypraea, genus Cypraea]