'Lion's leaf' definitions:
Definition of 'Lion's leaf'
From: GCIDE
- Lion's leaf \Li"on's leaf`\ (l[imac]"[u^]nz l[=e]f`) n. (Bot.) A South European plant of the genus Leontice ({Leontice leontopetalum}), the tuberous roots of which contain so much alkali that they are sometimes used as a substitute for soap. [1913 Webster]