The Collaborative International Dictionary of English v.0.48:
Clathrus \Clathrus\ n. the type genus of the Clathraceae. Syn: genus Clathrus. [WordNet 1.5]WordNet (r) 3.0 (2006):
Clathrus n 1: type genus of the Clathraceae [syn: Clathrus, genus Clathrus]