- noun a disease caused by infestation of the intestine by larvae of roundworms or nematodes, which pass round the body in the bloodstream and settle in muscles. Pigs are usually infected after eating raw swill.
- A disease of humans caused by eating fresh pork infested with the eggs or cysts of a parasitic worm, Tricinella spiralis, which can also reproduce in the human body. It is for this reason that pork is always well cooked and never eaten raw. Curing and smoking raw meat kills any infestation so that hams, bacon, salamis and smoked pork sausages are safe. They are also killed at 75°C and at –15°C for 3 weeks.