ˌhir(y)əˈdinēə noun plural
Usage: capitalized
Etymology: New Latin, from Hirudin-, Hirudo
: a class of hermaphroditic aquatic, terrestrial, or parasitic annelid worms distinguished by a coelom nearly obliterated by connective tissue and reduced to a series of vascular sinuses, by modification of the hindmost segments into a sucking disk, and by the absence of parapodia and setae — compare gnathobdellida , pharyngobdellida , rhynchobdellida
• hir·u·din·e·an | ̷ ̷ ̷ ̷|dinēən adjective or noun