wal ‧ rus /ˈwɔːlrəs $ ˈwɒːl-, ˈwɑːl-/ BrE AmE noun [countable]
[ Date: 1700-1800 ; Language: Dutch ; Origin: perhaps from Old Norse hrosshvalr 'horse-whale' ]
a large sea animal with two long ↑ tusk s (=things like teeth) coming down from the sides of its mouth ⇨ seal