spīˈru̇rədə noun plural
Usage: capitalized
Etymology: New Latin, from Spirura + -ida
: an order of Aphasmidia comprising parasitic nematode worms with the esophagus cylindroid and not divided into three regions, six lips, no buccal stylet, and the musculature polymyarian and including the guinea worm, the filarial worms, and other parasites of vertebrates that all have complex life cycles requiring an invertebrate intermediate host