Meaning of sempervivum

sem•per•vi•vum

Pronunciation: (sem"pur-vī'vum), [key]
— n.
  1. any of various succulent plants belonging to the genus Sempervivum, of the stonecrop family, having leaves in dense basal rosettes and a compact, flat-topped cluster of flowers, and including the houseleek, S. tectorum, and other commonly cultivated species.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.