Something that cures all diseases; a universal remedy, panacea. Also fig.
1870. Lowell, Cathedral, Poet. Wks. (1910), 417/2. Expect … A wondrous cure-all in equality.
1871. Napheys, Prev. & Cure Dis., III. iv. 741. It [lobelia] has been vaunted as a cure-all.
b. As a name for various plants: see quots. (Cf. all-heal.)
1793. Nemnich (cited in Britten & Holland, Plant-n.), Cure-all, Geum rivale.
1882. Syd. Soc. Lex., Cure-all, the Geum virginianum and the Œnothera biennis.
