vi a seal. ·see bulla.
2. bull ·noun taurus, the second of the twelve signs of the zodiac.
3. bull ·vi to be in heat; to manifest sexual desire as cows do.
4. bull ·noun one who, or that which, resembles a bull in character or action.
5. bull ·adj of or pertaining to a bull; resembling a bull; male; large; fierce.
6. bull ·noun a constellation of the zodiac between aries and gemini. it contains the pleiades.
7. bull ·noun one who operates in expectation of a rise in the price of stocks, or in order to effect such a rise. ·see 4th bear, ·noun, 5.
8. bull ·noun the male of any species of cattle (bovidae); hence, the male of any large quadruped, as the elephant; also, the male of the whale.
9. bull ·vt to endeavor to raise the market price of; as, to bull railroad bonds; to bull stocks; to bull lake shore; to endeavor to raise prices in; as, to bull the market. ·see 1st bull, ·noun, 4.
10. bull ·vi a letter, edict, or respect, of the pope, written in gothic characters on rough parchment, sealed with a bulla, and dated "a die incarnationis," ·i.e., "from the day of the incarnation." ·see apostolical brief, under brief.
11. bull ·vi a grotesque blunder in language; an apparent congruity, but real incongruity, of ideas, contained in a form of expression; so called, perhaps, from the apparent incongruity between the dictatorial nature of the pope's bulls and his professions of humility.