1. : a small brown cat shark (Apristurus brunneus) of the Pacific coast of No. America
2. : a common grayish or brownish shark (Carcharhinus milberti) widely distributed in the Atlantic ocean
3. : a large gray, brown, or yellowish shark (Carcharias taurus) of tropical seas that is chiefly a bottom scavenger alongshore though regarded in southern Africa as the leading man-eater of the area
Useful english dictionary. 2012.