scolecida

\\skōˈlesədə\ noun plural

Usage: capitalized

Etymology: New Latin, from scolec- + -ida

in some classifications : a phylum or other major division of Metazoa that comprises triploblastic bilaterally symmetrical invertebrate animals lacking a true coelom and having nonstriated musculature, a nonmetameric nervous system, and a primitive or no circulatory system and that includes Platyhelminthes, Nemertea, Acanthocephala, Gastrotricha, Rotifera, Nematoda, Nematomorpha, Kinorhyncha, and Entoprocta — compare aschelminthes