Hyperoartia \Hy`per*o*ar"ti*a\, n. pl. [NL.] (Zo["o]l.) An order of marsipobranchs including the lampreys. The suckerlike moth contains numerous teeth; the nasal opening is in the middle of the head above, but it does not connect with the mouth. See {Cyclostoma}, and {Lamprey}.
Hyperoartia n : lampreys as distinguished from hagfishes [syn: {Petromyzoniformes}, {suborder Petromyzoniformes}, {suborder Hyperoartia}]