'Larus argentatus' definitions:

Definition of 'Larus argentatus'

noun

Large gull of the northern hemisphere [syn: herring gull, Larus argentatus]

From: GCIDE

Herring \Her"ring\ (h[e^]r"r[i^]ng), n. [OE. hering, AS. h[ae]ring; akin to D. haring, G. h[aum]ring, hering, OHG. haring, hering, and prob. to AS. here army, and so called because they commonly move in large numbers. Cf. Harry.] (Zool.) One of various species of fishes of the genus Clupea, and allied genera, esp. the common round or English herring (Clupea harengus) of the North Atlantic. Herrings move in vast schools, coming in spring to the shores of Europe and America, where they are salted and smoked in great quantities. [1913 Webster]
Herring gull (Zool.), a large gull which feeds in part upon herrings; esp., Larus argentatus in America, and {Larus cachinnans} in England. See Gull.
Herring hog (Zool.), the common porpoise.
King of the herrings. (Zool.) (a) The chim[ae]ra (Chimaera monstrosa) which follows the schools of herring. Called also rabbit fish in the U. K. See Chim[ae]ra. (b) The opah. [1913 Webster]

From: GCIDE

Gull \Gull\, n. [Of Celtic origin; cf. Corn. gullan, W. gwylan.] (Zool.) One of many species of long-winged sea birds of the genus Larus and allied genera. [1913 Webster]
Note: Among the best known American species are the herring gull (Larus argentatus), the great black-backed gull (L. murinus) the laughing gull (L. atricilla), and Bonaparte's gull (L. Philadelphia). The common European gull is Larus canus. [1913 Webster]
Gull teaser (Zool.), the jager; -- also applied to certain species of terns. [1913 Webster]