A hagfish of the family Myxinidae, in which the gills on each side characteristically have a common opening.
Some authors have placed all extant hagfishes in this family, but most now exclude from it members of the family Eptatretidae (formerly Bdellostomidae).
Of or belonging to the family Myxinidae; of the nature of a myxinid.
1950s; earliest use found in Warren Andrew (b. 1910). From scientific Latin Myxinidae from Myxine + -idae. Compare earlier myxinoid [adjective].