‖n. pl. [ NL., fr. haustellum, fr. L. haurire, haustum, to draw water, to swallow. See Exhaust. ] (Zool.) An artificial division of insects, including all those with a sucking proboscis. [ 1913 Webster ]
a. [ See Haustellata. ] (Zool.) Provided with a haustellum, or sucking proboscis. --
‖n.;