The Collaborative International Dictionary
Argulus
Argulus \Ar"gu*lus\, n. [NL., dim of Argus.] (Zo["o]l.) A genus of copepod Crustacea, parasitic of fishes; a fish louse. See Branchiura.
Argulus
Branchiura \Bran"chi*u"ra\, n. pl. [NL., fr., Gr. ? gill + o'yra` tail.] (Zo["o]l.) A group of Entomostraca, with suctorial mouths, including species parasitic on fishes, as the carp lice ( Argulus).