Source : Webster's Revised Unabridged Dictionary (1913)

Descendent \De*scend"ent\, a. [L. descendens, -entis, p. pr. of
   descendre. Cf. {Descendant}.]
   Descending; falling; proceeding from an ancestor or source.

         More than mortal grace Speaks thee descendent of
         ethereal race.                           --Pope.

Source : WordNet®

descendent
     adj : going or coming down [syn: {descendant}]
     n : a person considered as descended from some ancestor or race
         [syn: {descendant}] [ant: {ancestor}]