Gelatinate

Ge*lat"i*nate, v. i. To be converted into gelatin, or into a substance like jelly.

Lapis lazuli, if calcined, does not effervesce, but gelatinates with the mineral acids.
Kirwan.

Ge*lat"i*nate (?), v. t. [imp. & p. p. Gelatinated (?); p. pr. & vb. n. Gelatinating.] To convert into gelatin, or into a substance resembling jelly.