Source : Webster's Revised Unabridged Dictionary (1913)

Interment \In*ter"ment\, n. [OE. enterment, F. enterrement. See
   {Inter}, v. t.]
   The act or ceremony of depositing a dead body in the earth;
   burial; sepulture; inhumation. --T. Warton.

Source : WordNet®

interment
     n : the ritual placing of a corpse in a grave [syn: {burial}, {entombment},
          {inhumation}, {sepulture}]