nonshark adjective 2noun 1forms 1 adjective2 •Not a shark.The findings showed that fishers employed a range of methods to (i) increase efficiency in catching target nonshark species and (ii) decrease shark catches. — 2009 •Not relating to sharks.Elsewhere, other nonshark labels are also used, such as grayfish, flake, calf fish, and even sea sturgeon—all intended to create the impression that the fish is something other than a shark. — 2005 noun1 •An animal that is not a shark.(a) No sharks are cetaceans. (b) Some nonsharks are cetaceans — 1985 formsnonsharks