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.
These gray and dun colors may be also produced by
mixing whites and blacks. --Sir I.
2. Gray-haired; gray-headed; of a gray color; hoary.
3. Old; mature; as, gray experience. -- Ames.
4. gloomy; dismal.
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
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
Gray owl (Zool.), the European tawny or brown owl (Syrnium
aluco). The great gray owl (Ulula cinerea) inhabits
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
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.