Silicify /(?)/

Si·lic·i·fy

Silicify

v. t.

imp. & p. p. Silicified; p. pr. & vb. n. Silicifying

  1. To convert into, or to impregnate with, silica, or with the compounds of silicon. (Chem.)
    The specimens found . . . are completely silicified.
    — Say.

Silicify

v. i.
  1. To become converted into silica, or to be impregnated with silica.