grolar UK /ˈɡɹəʊlə/US /ˈɡɹoʊlɚ/ noun1 •A hybrid cross between a polar bear and a grizzly.Polar bears that spend more time on land as their sea ice habitat shrinks are coming into contact with grizzly bears that have wandered further north – resulting in “grolar” or “pizzly” bear hybrids. — 2018 formsgrolars