From The Collaborative International Dictionary of English v.0.48 :
Cupressus \Cupressus\ n. one of the genera of cypress trees, the type genus of the Cupressaceae. Syn: genus Cupressus. [WordNet 1.5]From WordNet (r) 3.0 (2006) :
Cupressus n 1: type genus of Cupressaceae [syn: Cupressus, genus Cupressus]