The Collaborative International Dictionary of English v.0.48:

Gray \Gray\ (gr[=a]), a. [Compar. Grayer; superl. Grayest.]
   [OE. gray, grey, AS. gr[=ae]g, gr[=e]g; akin to D. graauw,
   OHG. gr[=a]o, G. grau, Dan. graa, Sw. gr[*a], Icel. gr[=a]r.]
   [Written also grey.]
   1. any color of neutral hue between white and black; white
      mixed with black, as the color of pepper and salt, or of
      ashes, or of hair whitened by age; sometimes, a dark mixed
      color; as, the soft gray eye of a dove.
      [1913 Webster]

            These gray and dun colors may be also produced by
            mixing whites and blacks.             --Sir I.
                                                  Newton.
      [1913 Webster]

   2. Gray-haired; gray-headed; of a gray color; hoary.
      [1913 Webster]

   3. Old; mature; as, gray experience. -- Ames.
      [1913 Webster]

   4. gloomy; dismal.
      [PJC]

   Gray antimony (Min.), stibnite.

   Gray buck (Zool.), the chickara.

   Gray cobalt (Min.), smaltite.

   Gray copper (Min.), tetrahedrite.

   Gray duck (Zool.), the gadwall; also applied to the female
      mallard.

   Gray falcon (Zool.) the peregrine falcon.

   Gray Friar. See Franciscan, and Friar.

   Gray hen (Zool.), the female of the blackcock or black
      grouse. See Heath grouse.

   Gray mill or Gray millet (Bot.), a name of several plants
      of the genus Lithospermum; gromwell.

   Gray mullet (Zool.) any one of the numerous species of the
      genus Mugil, or family Mugilid[ae], found both in the
      Old World and America; as the European species
      (Mugilid[ae] capito, and Mugilid[ae] auratus), the
      American striped mullet (Mugilid[ae] albula), and the
      white or silver mullet (Mugilid[ae] Braziliensis). See
      Mullet.

   Gray owl (Zool.), the European tawny or brown owl (Syrnium
      aluco). The great gray owl (Ulula cinerea) inhabits
      arctic America.

   Gray parrot (Zool.), an African parrot (Psittacus
      erithacus), very commonly domesticated, and noted for its
      aptness in learning to talk. Also called jako.

   Gray pike. (Zool.) See Sauger.

   Gray snapper (Zool.), a Florida fish; the sea lawyer. See
      Snapper.

   Gray snipe (Zool.), the dowitcher in winter plumage.

   Gray whale (Zool.), a rather large and swift whale of the
      northern Pacific (Eschrichtius robustus, formerly
      Rhachianectes glaucus), having short jaws and no dorsal
      fin. It grows to a length of 50 feet (someimes 60 feet).
      It was formerly taken in large numbers in the bays of
      California, and is now rare; -- called also grayback,
      devilfish, and hardhead. It lives up to 50 or 60 years
      and adults weigh from 20 to 40 tons.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Parrot \Par"rot\ (p[a^]r"r[u^]t), n. [Prob. fr. F. Pierrot, dim.
   of Pierre Peter. F. pierrot is also the name of the sparrow.
   Cf. Paroquet, Petrel, Petrify.]
   1. (Zool.) In a general sense, any bird of the order
      Psittaci.
      [1913 Webster]

   2. (Zool.) Any species of Psittacus, Chrysotis, Pionus,
      and other genera of the family Psittacid[ae], as
      distinguished from the parrakeets, macaws, and lories.
      They have a short rounded or even tail, and often a naked
      space on the cheeks. The gray parrot, or jako (Psittacus
      erithacus) of Africa (see Jako), and the species of
      Amazon, or green, parrots (Chrysotis) of America, are
      examples. Many species, as cage birds, readily learn to
      imitate sounds, and to repeat words and phrases.
      [1913 Webster]

   Carolina parrot (Zool.), the Carolina parrakeet. See
      Parrakeet.

   Night parrot, or Owl parrot. (Zool.) See Kakapo.

   Parrot coal, cannel coal; -- so called from the crackling
      and chattering sound it makes in burning. [Eng. & Scot.]


   Parrot green. (Chem.) See Scheele's green, under Green,
      n.

   Parrot weed (Bot.), a suffrutescent plant (Bocconia
      frutescens) of the Poppy family, native of the warmer
      parts of America. It has very large, sinuate, pinnatifid
      leaves, and small, panicled, apetalous flowers.

   Parrot wrasse, Parrot fish (Zool.), any fish of the genus
      Scarus. One species (Scarus Cretensis), found in the
      Mediterranean, is esteemed by epicures, and was highly
      prized by the ancient Greeks and Romans.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Jako \Jak"o\ (j[a^]k"[-o]), n. (Zool.)
   An African parrot (Psittacus erithacus), very commonly kept
   as a cage bird; -- called also gray parrot.
   [1913 Webster]

WordNet (r) 3.0 (2006):

Psittacus erithacus
    n 1: commonly domesticated grey parrot with red-and-black tail
         and white face; native to equatorial Africa [syn: African
         grey, African gray, Psittacus erithacus]