lixivial

a. [ L. lixivius, fr. lix ashes, lye ashes, lye: cf. F. lixiviel. ] 1. Impregnated with, or consisting of, alkaline salts extracted from wood ashes; impregnated with a salt or salts like a lixivium. Boyle. [ 1913 Webster ]

2. Of the color of lye; resembling lye. [ 1913 Webster ]

3. Having the qualities of alkaline salts extracted from wood ashes. [ 1913 Webster ]

Lixivial salts (Old Chem.), salts which are obtained by passing water through ashes, or by pouring it on them. [ 1913 Webster ]