A trematode worm, especially one that parasitizes fish and can be harmful to animals and humans that eat infected fish.
From 'fluke' (a parasitic worm) with the suffix '-an' denoting a member of a group. The term is used in parasitology and zoology to classify certain types of flatworms.
Flucan sounds like a superhero, but it's actually a parasitic nightmare—these worms can live inside fish and then move to people who eat them undercooked. Sushi lovers should know this word!
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