Source : Webster's Revised Unabridged Dictionary (1913)

Sport \Sport\, v. i. [imp. & p. p. {Sported}; p. pr. & vb. n.
   {Sporting}.]
   1. To play; to frolic; to wanton.

            [Fish], sporting with quick glance, Show to the sun
            their waved coats dropt with gold.    --Milton.

   2. To practice the diversions of the field or the turf; to be
      given to betting, as upon races.

   3. To trifle. ``He sports with his own life.'' --Tillotson.

   4. (Bot. & Zo["o]l.) To assume suddenly a new and different
      character from the rest of the plant or from the type of
      the species; -- said of a bud, shoot, plant, or animal.
      See {Sport}, n., 6. --Darwin.

   Syn: To play; frolic; game; wanton.

Sporting \Sport"ing\, a.
   Of pertaining to, or engaging in, sport or sporrts;
   exhibiting the character or conduct of one who, or that
   which, sports.

   {Sporting book}, a book containing a record of bets, gambling
      operations, and the like. --C. Kingsley.

   {Sporting house}, a house frequented by sportsmen, gamblers,
      and the like.

   {Sporting man}, one who practices field sports; also, a horse
      racer, a pugilist, a gambler, or the like.

   {Sporting plant} (Bot.), a plant in which a single bud or
      offset suddenly assumes a new, and sometimes very
      different, character from that of the rest of the plant.
      --Darwin.

Source : WordNet®

sporting
     adj 1: marked by or calling for sportsmanship or fair play; "a
            clean fight"; "a sporting solution of the
            disagreement"; "sportsmanlike conduct" [syn: {clean},
            {sportsmanlike}]
     2: relating to or used in sports; "sporting events"; "sporting
        equipment"
     3: involving risk or willingness to take a risk; "a sporting
        chance"; "sporting blood"
     4: preoccupied with the pursuit of pleasure and especially
        games of chance; "led a dissipated life"; "a betting man";
        "a card-playing son of a bitch"; "a gambling fool";
        "sporting gents and their ladies" [syn: {dissipated}, {betting},
         {card-playing}, {gambling}]