\Jack"al`\, n. [Pers. shagh[=a]l: cf. OF. jackal, F.
chacal; cf. Skr. [,c][.r]g[=a]la.]
1. (Zo["o]l.) Any one of several species of carnivorous
   animals inhabiting Africa and Asia, related to the dog and
   wolf. They are cowardly, nocturnal, and gregarious. They
   feed largely on carrion, and are noted for their piercing
   and dismal howling.

Note: The common species of Southern Asia ({Canis aureus}) is
      yellowish gray, varied with brown on the shoulders,
      haunches, and legs. The common African species ({C.
      anthus}) is darker in color.

2. One who does mean work for another's advantage, as jackals
   were once thought to kill game which lions appropriated.
   [Colloq.] --Ld. Lytton.