Source : Webster's Revised Unabridged Dictionary (1913)

Grossification \Gross`i*fi*ca"tion\, n. [Gross + L. ficare (in
   comp.) to make. See {-fy}.]
   1. The act of making gross or thick, or the state of becoming
      so.

   2. (Bot.) The swelling of the ovary of plants after
      fertilization. Henslow.