The Collaborative International Dictionary
L murinus
Gull \Gull\, n. [Of Celtic origin; cf. Corn. gullan, W. gwylan.] (Zo["o]l.) One of many species of long-winged sea birds of the genus Larus and allied genera.
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.
Gull teaser (Zo["o]l.), the jager; -- also applied to certain species of terns.