Source : Webster's Revised Unabridged Dictionary (1913)

Teal \Teal\, n. [OE. tele; akin to D. teling a generation,
   production, teal, telen to breed, produce, and E. till to
   cultivate. The English word probably once meant, a brood or
   flock. See {Till} to cultivate.] (Zo["o]l.)
   Any one of several species of small fresh-water ducks of the
   genus {Anas} and the subgenera {Querquedula} and {Nettion}.
   The male is handsomely colored, and has a bright green or
   blue speculum on the wings.

   Note: The common European teal ({Anas crecca}) and the
         European blue-winged teal, or garganey ({A.
         querquedula} or {A. circia}), are well-known species.
         In America the blue-winged teal ({A. discors}), the
         green-winged teal ({A. Carolinensis}), and the cinnamon
         teal ({A. cynaoptera}) are common species, valued as
         game birds. See {Garganey}.

   {Goose teal}, a goslet. See {Goslet}.

   {Teal duck}, the common European teal.

Source : WordNet®

teal
     adj : a bluish shade of green [syn: {bluish green}, {blue-green},
           {cyan}]

teal
     n 1: a shade of green tinged with blue; "they painted it a light
          shade of bluish green" [syn: {bluish green}, {blue-green}]
     2: any of various small short-necked dabbling river ducks of
        Europe and America