shark
Any predatory fish of the superorder Selachimorpha, with a cartilaginous skeleton and 5 to 7 gill slits on each side of its head.
Other meanings
meat of this animal, consumed as food.
Any fish of the class Chondrichthyes, especially an extinct shark-like holocephalian.
Word history
From Middle English "shark".
Where this comes from
This definition is adapted from “shark” on Wiktionary, by its contributors, published under CC BY-SA 4.0. This page is published under the same licence.