1. Impregnated with, or consisting of,
alkaline salts extracted from
tree ashes; impregnated with a
salt or
salts like a lixivium. (Boyle)
2. Of the
colour of lye; resembling lye.
3. Having the qualities of
alkaline salts extracted from
tree ashes.
Lixivial salts, salts which are obtained by passing water through ashes, or by pouring it on them.
Origin: L. Lixivius, fr. Lix ashes, lye ashes, lye: cf. F. Lixiviel.
Source: Websters Vocabulary