Source : Webster's Revised Unabridged Dictionary (1913)

Ulula \Ul"u*la\, n. [L., a screech owl.] (Zo["o]l.)
   A genus of owls including the great gray owl ({Ulula
   cinerea}) of Arctic America, and other similar species. See
   Illust. of {Owl}.

Gray \Gray\, 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. 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.

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

   2. Gray-haired; gray-headed; of a gray color; hoary.

   3. Old; mature; as, gray experience. Ames.

   {Gray antimony} (Min.), stibnite.

   {Gray buck} (Zo["o]l.), the chickara.

   {Gray cobalt} (Min.), smaltite.

   {Gray copper} (Min.), tetrahedrite.

   {Gray duck} (Zo["o]l.), the gadwall; also applied to the
      female mallard.

   {Gray falcon} (Zo["o]l.) the peregrine falcon.

   {Gray Friar}. See {Franciscan}, and {Friar}.

   {Gray hen} (Zo["o]l.), the female of the blackcock or black
      grouse. See {Heath grouse}.

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

   {Gray mullet} (Zo["o]l.) 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 ({M.
      capito}, and {M. auratus}), the American striped mullet
      ({M. albula}), and the white or silver mullet ({M.
      Braziliensis}). See {Mullet}.

   {Gray owl} (Zo["o]l.), the European tawny or brown owl
      ({Syrnium aluco}). The great gray owl ({Ulula cinerea})
      inhabits arctic America.

   {Gray parrot} (Zo["o]l.), a parrot ({Psittacus erithacus}),
      very commonly domesticated, and noted for its aptness in
      learning to talk.

   {Gray pike}. (Zo["o]l.) See {Sauger}.

   {Gray snapper} (Zo["o]l.), a Florida fish; the sea lawyer.
      See {Snapper}.

   {Gray snipe} (Zo["o]l.), the dowitcher in winter plumage.

   {Gray whale} (Zo["o]l.), a rather large and swift California
      whale ({Rhachianectes glaucus}), formerly taken in large
      numbers in the bays; -- called also {grayback},
      {devilfish}, and {hardhead}.