The Collaborative International Dictionary of English v.0.48:

Living \Liv"ing\ (l[i^]v"[i^]ng), a. [From Live, v. i.]
   1. Being alive; having life; as, a living creature. Opposed
      to dead.
      [1913 Webster]

   2. Active; lively; vigorous; -- said esp. of states of the
      mind, and sometimes of abstract things; as, a living
      faith; a living principle. " Living hope. " --Wyclif.
      [1913 Webster]

   3. Issuing continually from the earth; running; flowing; as,
      a living spring; -- opposed to stagnant.
      [1913 Webster]

   4. Producing life, action, animation, or vigor; quickening.
      "Living light." --Shak.
      [1913 Webster]

   5. Ignited; glowing with heat; burning; live.
      [1913 Webster]

            Then on the living coals wine they pour. --Dryden.
      [1913 Webster]

   Living force. See Vis viva, under Vis.

   Living gale (Naut.), a heavy gale.

   Living rock or Living stone, rock in its native or
      original state or location; rock not quarried. " I now
      found myself on a rude and narrow stairway, the steps of
      which were cut out of the living rock." --Moore.

   The living, those who are alive, or one who is alive.
      [1913 Webster]

WordNet (r) 3.0 (2006):

living stone
    n 1: any plant of the genus Lithops native to Africa having
         solitary yellow or white flowers and thick leaves that
         resemble stones [syn: lithops, living stone,
         stoneface, stone-face, stone plant, stone life
         face, flowering stone]