Source : Webster's Revised Unabridged Dictionary (1913)

Climbing \Climb"ing\,
   p. pr. & vb. n. of {Climb}.

   {Climbing fern}. See under {Fern}.

   {Climbing perch}. (Zo["o]l.) See {Anabas}, and
      {Labyrinthici}.

Climb \Climb\ (kl[imac]m), v. i. [imp. & p. p. {Climbed}
   (kl[imac]md), Obs. or Vulgar {Clomb} (kl[o^]m); p. pr. & vb.
   n. {Climbing}.] [AS. climban; akin to OHG. chlimban, G. & D.
   klimmen, Icel. kl[=i]fa, and E. cleave to adhere.]
   1. To ascend or mount laboriously, esp. by use of the hands
      and feet.

   2. To ascend as if with effort; to rise to a higher point.

            Black vapors climb aloft, and cloud the day.
                                                  --Dryden.

   3. (Bot.) To ascend or creep upward by twining about a
      support, or by attaching itself by tendrils, rootlets,
      etc., to a support or upright surface.

Source : WordNet®

climbing
     n : an event that involves rising to a higher point (as in
         altitude or temperature or intensity etc.) [syn: {climb},
          {mounting}]