'Argulus' definitions:

Definition of 'Argulus'

From: GCIDE

Branchiura \Bran"chi*u"ra\, n. pl. [NL., fr., Gr. ? gill + o'yra` tail.] (Zool.) A group of Entomostraca, with suctorial mouths, including species parasitic on fishes, as the carp lice (Argulus). [1913 Webster]