[1] : The Collaborative International Dictionary of English v.0.48

apparent \appar"ent\, a. f. apparent, l. apparens, -entis, p.
   pr. of apparere. see appear.
   1. capable of being seen, or easily seen; open to view;
      visible to the eye; within sight or view.
      1913 webster

            the moon . . . apparent queen.        --milton.
      1913 webster

   2. clear or manifest to the understanding; plain; evident;
      obvious; known; palpable; indubitable.
      1913 webster

            it is apparent foul play.             --shak.
      1913 webster

   3. appearing to the eye or mind distinguished from, but not
      necessarily opposed to, true or real; seeming; as the
      apparent motion or diameter of the sun.
      1913 webster

            to live on terms of civility, and even of apparent
            friendship.                           --macaulay.
      1913 webster

            what berkeley calls visible magnitude was by
            astronomers called apparent magnitude. --reid.
      1913 webster

   apparent horizon, the circle which in a level plain bounds
      our view, and is formed by the apparent meeting of the
      earth and heavens, as distinguished from the rational
      horizon.

   apparent time. see time.

   heir apparent law, one whose to an estate is indefeasible
      if he survives the ancestor; -- in distinction from
      presumptive heir. see presumptive.
      1913 webster

   syn: visible; distinct; plain; obvious; clear; certain;
        evident; manifest; indubitable; notorious.
        1913 webster
see also:
appear apparent horizon apparent time time heir apparent presumptive 

[2] : The Collaborative International Dictionary of English v.0.48

heir \heir\ ^ar, n. oe. heir, eir, hair, of. heir, eir, f.
   hoir, l. heres; of uncertain origin. cf. hereditary,
   heritage.
   1. one who inherits, or is entitled to succeed to the
      possession of, any property after the death of its owner;
      one on whom the law bestows the title or property of
      another at the death of the latter.
      1913 webster

            i am my father's heir and only son.   --shak.
      1913 webster

   2. one who receives any endowment from an ancestor or
      relation; as, the heir of one's reputation or virtues.
      1913 webster

            and i his heir in misery alone.       --pope.
      1913 webster

   heir apparent. law. see under apparent.

   heir at law, one who, after his ancector's death, has a
      right to inherit all his intestate estate. --wharton law
      dict..

   heir presumptive, one who, if the ancestor should die
      immediately, would be his heir, but whose right to the
      inheritance may be defeated by the birth of a nearer
      relative, or by some other contingency.
      1913 webster
see also:
hereditary heritage heir apparent apparent heir at law heir presumptive 

[3] : WordNet (r) 2.0

heir apparent
     n : an heir whose right to an inheritance cannot be defeated if
         that person outlives the ancestor ant: heir presumptive
see also:
heir presumptive 

[4] : Moby Thesaurus II by Grady Ward, 1.0

43 moby thesaurus words for "heir apparent":
   muslim rulers, prinz, apparent heir, atheling, beneficiary heir,
   coparcener, crown prince, emir, fideicommissary heir,
   fiduciary heir, heir, heir expectant, heir general, heir in tail,
   heir of entail, heir of inventory, heir of line, heir portioner,
   heir presumptive, heir whatsoever, heiress, heritor, inheritor,
   inheritress, inheritrix, joint heir, khan, king, knez, mirza,
   next in line, presumptive heir, prince, prince consort,
   prince regent, princeling, princes of india, remainderman,
   reversioner, shahzada, sheikh, sherif, successor

Heir Apparent >> H Words
Heir Apparent, definition of term: Heir Apparent
heir+apparent_pag1.html

Apparent >> A Words
Apparent, definition of term: Apparent
apparent_pag1.html

Heir >> H Words
Heir, definition of term: Heir
heir_pag1.html

Apparent Magnit >> A Words
Apparent Magnit, definition of term: Apparent Magnit
apparent+magnit_pag1.html

Heir Presumptiv >> H Words
Heir Presumptiv, definition of term: Heir Presumptiv
heir+presumptiv_pag1.html

Heir At Law >> H Words
Heir At Law, definition of term: Heir At Law
heir+at+law_pag1.html