lancetfish

[ lan-sit-fish, lahn- ]
/ ˈlæn sɪtˌfɪʃ, ˈlɑn- /

noun, plural (especially collectively) lan·cet·fish, (especially referring to two or more kinds or species) lan·cet·fish·es.

any large, marine fish of the genus Alepisaurus, having daggerlike teeth.

Origin of lancetfish

First recorded in 1830–40; lancet + fish