Bull medical definition

noun

1. the adult male of any bovine animal, as the ox, buffalo, etc.
2. the adult male of certain other large animals, as the elephant, elk, moose, walrus, whale, etc.
3. a person who buys stocks or securities in the expectation that their prices will rise, or who seeks to bring about such a rise, in order to sell them at a profit
4. a person regarded as like a bull in size, strength, etc.
5. a bulldog
6. ☆ Slang a policeman or detective
7. ☆ Slang bullshit

transitive verb

1. ☆ to make (one's way) with driving force
2. ☆ Slang to bluff, as with insincere talk

intransitive verb

adjective

1. male
2. like a bull in size, strength, etc.
3. rising in price: a bull market