n. a genus of small parasitic tapeworms that reach a maximum length of only 8 mm. Adults are found in the intestines of dogs, wolves, or jackals. If the eggs are swallowed by a human, who can act as a secondary host, the resulting larvae penetrate the intestine and settle in the lungs, liver, or brain to form large cysts, usually 5–10 cm in diameter (see hydatid disease). Two species causing this condition are E. granulosus and E. multilocularis.
Subjects: Medicine and Health.