Source : Webster's Revised Unabridged Dictionary (1913)

Walking \Walk"ing\,
   a. & n. from {Walk}, v.

   {Walking beam}. See {Beam}, 10.

   {Walking crane}, a kind of traveling crane. See under
      {Crane}.

   {Walking fern}. (Bot.) See {Walking leaf}, below.

   {Walking fish} (Zo["o]l.), any one of numerous species of
      Asiatic fishes of the genus {Ophiocephalus}, some of
      which, as {O. marulius}, become over four feet long. They
      have a special cavity over the gills lined with a membrane
      adapted to retain moisture to aid in respiration, and are
      thus able to travel considerable distances over the land
      at night, whence the name. They construct a curious nest
      for their young. Called also {langya}.

   {Walking gentleman} (Theater), an actor who usually fills
      subordinate parts which require a gentlemanly appearance
      but few words. [Cant]

   {Walking lady} (Theater), an actress who usually fills such
      parts as require only a ladylike appearance on the stage.
      [Cant]

   {Walking leaf}.
   (a) (Bot.) A little American fern ({Camptosorus
       rhizophyllus}); -- so called because the fronds taper
       into slender prolongations which often root at the apex,
       thus producing new plants.
   (b) (Zo["o]l.) A leaf insect. See under {Leaf}.

   {Walking papers}, or {Walking ticket}, an order to leave;
      dismissal, as from office. [Colloq.] --Bartlett.

   {Walking stick}.
   (a) A stick or staff carried in the hand for hand for support
       or amusement when walking; a cane.
   (b) (Zo["o]l.) A stick insect; -- called also {walking
       straw}. See Illust. of {Stick insect}, under {Stick}.

   {Walking wheel} (Mach.), a prime mover consisting of a wheel
      driven by the weight of men or animals walking either in
      it or on it; a treadwheel.

Source : WordNet®

Camptosorus rhizophyllus
     n : ferns having lanceolate fronds that root at the tip [syn: {walking
         fern}, {walking leaf}, {Asplenium rhizophyllum}]