Zool. [mod. L. pl. neut. of abdōminālis; see ABDOMINAL: sc. animalia animals.] An order of the Cirripedes or barnacles, having the body composed of one cephalic, seven thoracic, and three abdominal segments, the latter bearing three pairs of cirri.
1876. Beneden, An. Parasites, 55. The whole family of the Abdominalia, a name proposed by Darwin, if I am not mistaken, have the sexes separate.
