(ăn-ĭ-să′kĭs sĭm′plĕks)
[Pronunciation]
[NL]

An intestinal parasite that typically infests crustaceans, fish, or sea mammals. It may cause human disease (anisakiasis) when the flesh of these animals is consumed without adequate cooking or freezing or is used in raw dishes such as sashimi or sushi.
This intestinal roundworm is colloquially referred to as the herring worm.