conus

noun
co·​nus | \ˈkō-nəs \

Medical Definition of conus 

1 capitalized : a very large genus (the type of the family Conidae) of tropical marine snails comprising the cones and including many harmless forms and a few chiefly in the southwest Pacific that are highly dangerous because they are capable of biting with the radula and injecting a paralytic venom that has been known to cause death in humans

2 plural coni\-​ˌnī, -​(ˌ)nē \ : conus arteriosus

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