Source : Webster's Revised Unabridged Dictionary (1913)

Lixivial \Lix*iv"i*al\, 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.

   2. Of the color of lye; resembling lye.

   3. Having the qualities of alkaline salts extracted from wood
      ashes.

   {Lixivial salts} (Old Chem.), salts which are obtained by
      passing water through ashes, or by pouring it on them.