a large strong animal with thick fur that eats flesh, fruit, and insects: ➔ grizzly bear, polar bear, teddy bear
a mother bear and her cubs
2 American English informal
something that is very difficult to do or to deal with:
The chemistry test was a bear.
3 British English informal
to be rude to people because you are feeling bad-tempered
someone who sells shares or goods when they expect the price to fall [↪ bull]