The Collaborative International Dictionary of English v.0.48:

Everlasting \Ever*last"ing\a.
   1. Lasting or enduring forever; exsisting or continuing
      without end; immortal; eternal. "The Everlasting God."
      --Gen. xx1. 33.
      [1913 Webster]

   2. Continuing indefinitely, or during a long period;
      perpetual; sometimes used, colloquially, as a strong
      intensive; as, this everlasting nonsence.
      [1913 Webster]

            I will give to thee, and to thy seed after thee . .
            . the land of Canaan, for an everlasting possession.
                                                  --Gen xvii. 8.
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            And heard thy everlasting yawn confess
            The pains and penalties of idleness.  --Pope.

   Syn: Eternal; immortal, interminable; endless; never-ending;
        infinite; unceasing; uninterrupted; continual;
        unintermitted; incessant.

   Usage: -- Everlasting, Eternal. Eternal denotes (when
          taken strictly) without beginning or end of duration;
          everlasting is sometimes used in our version of the
          Scriptures in the sense of eternal, but in modern
          usage is confined to the future, and implies no
          intermission as well as no end.
          [1913 Webster]

                Whether we shall meet again I know not;
                Therefore our everlasting farewell take;
                Forever, and forever farewell, Cassius. --Shak.
          [1913 Webster]

   Everlasting flower. Sane as Everlasting, n., 3.

   Everlasting pea, an ornamental plant (Lathyrus
      latifolius) related to the pea; -- so called because it
      is perennial.
      [1913 Webster]

WordNet (r) 3.0 (2006):

Lathyrus latifolius
    n 1: perennial climber of central and southern Europe having
         purple or pink or white flowers; naturalized in North
         America [syn: broad-leaved everlasting pea, perennial
         pea, Lathyrus latifolius]