Source : Webster's Revised Unabridged Dictionary (1913)

Catling \Cat"ling\, n. [Cat + -ing.]
   1. A little cat; a kitten. ``Cat nor catling.'' --Drummond.

   2. Catgut; a catgut string. [R.] --Shak.

   3. (Surg.) A double-edged, sharp-pointed dismembering knife.
      [Spelt also {catlin}.] --Crobb.

Source : WordNet®

catling
     n : a long double-edged knife used for amputations