Source : Webster's Revised Unabridged Dictionary (1913)

Exungulate \Ex*un"gu*late\, v. t. [imp. & p. p. {Exungulated};
   p. pr. & vb. n. {Exungulating}.] [L. exungulare to lose the
   hoof, ex out, from + ungula. See {Ungula}.]
   To pare off, as nails, the hoof, etc. [R.]