Akademik

large primitive shark widely distributed in warm seas

: a shark of the family Hexanchidae; especially : a large shark (Hexanchus griseus) having six gill openings on each side and being widely distributed in warm and temperate seas

any of several sharks constituting the family Hexanchidae, having six or seven gill openings on each side of the head.

cow shark noun

Any primitive shark of the family Hexanchidae, having six or seven gill slits

Main Entry: ↑cow

cow shark,

a large shark with six pairs of gill slits, found in European and West Indian waters.

n. a dull gray or brown shark that lives mainly in deep water, esp. in the North Atlantic and Mediterranean. ● Hexanchus griseus, family Hexanchidae