guinea worm noun2 •A species of nematode, (Dracunculus medinensis) •A long, white parasitic worm, of species Dracunculus medinensis, which can live in human skin.the rishta-doctors patiently removing guinea-worms, making an incision, trapping the three-foot-long creature's head in a cleft at the end of a stick, and then slowly winding it out of the incision — 2006 formsguinea worms · guinea-worms