D defs.my
Entry 1 sense Webster, 1913

Lion's leaf

/(lī"ŭnz lēf`)/ · Li·on's leaf · IPA
01 n. A South European plant of the genus Leontice (Leontice leontopetalum), the tuberous roots of which contain so much alkali that they are som…
  1. 1.
    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.(Bot.)