anisakis

noun

an·​i·​sa·​kis ˌa-nə-ˈsā-kəs 

1

capitalized : a genus of nematode worms (family Anisakidae) that are parasitic in fish and mammals and that include one (Anisakis simplex) which causes anisakiasis

2

plural anisakis : a nematode of the genus Anisakis

Raw and undercooked fish can contain larvae of a roundworm, called anisakis.

—The Contra Costa Times (California)

anisakid

ˌa-nə-ˈsā-kəd 

noun

The anisakids are likely to be about the size of a straight pin, but somewhat coiled.

—Harvard Medical School Health Letter

The most common culprits they see in marine fish are anisakid roundworm larvae.

—Claire Panosian Dunavan, Discover