n., pl., -coc·ci (-kŏk'sī', -kŏk'ī').
Any of several parasitic tapeworms of the genus Echinococcus, the larvae of which infect mammals and form large, spherical cysts in the liver or lungs, causing serious or fatal disease.
[New Latin Echīnococcus, genus name : ECHINO- + -COCCUS.]





