Source : Webster's Revised Unabridged Dictionary (1913)

Pumicate \Pu"mi*cate\, v. t. [imp. & p. p. {Pumicated}; p. pr. &
   vb. n. {Pumicating}.] [L. pumicatus, p. p. of pumicare to
   pumicate, fr. pumex. See {Pumice}.]
   To make smooth with pumice. [R.]