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Anisakis

[ăn′ĭ-sā′kĭs]
n.
  1. A genus of nematodes that includes many common parasites of marine mammals and marine fish-eating birds.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.