1
- an uncastrated male bovine animal（未阉割的）公牛：
as modifier bull calves.小公牛。
1.1
- a large male animal, especially a whale or elephant雄性巨兽（尤指雄鲸或公象）。
1.2
the Bull
the zodiacal sign or constellation Taurus金牛宫; 金牛星座。
2
- Brit. the centre of a target; a bullseye〈英〉靶心。
3
- Stock Exchange a person who buys shares hoping to sell them at a higher price later【股票】买空的人, 多头。常与BEAR2相对。
attrib.
- (of a part of the body, especially the neck) resembling the corresponding part of a male bovine animal in build and strength（体格, 力量）大如牛的; （似）公牛的：
his bull neck and broad shoulders.
他牛一般的粗脖子和宽阔的肩膀。
1
- with obj. and adverbial of direction push or drive powerfully or violently用力推, 猛推：
he bulled the motor cycle clear of the tunnel
他用力把摩托车推离隧道
no obj., with adverbial of direction he was bulling through a mob of admirers.他使劲拨开众多的崇拜者往前走。
2
- no obj.
be bulling
(of a cow) behave in a manner characteristic of being on heat（母牛）发情。
短语
like a bull at a gate
- taking action hastily and without thought鲁莽地; 狂烈地, 猛烈地。
like a bull in a china shop
- behaving recklessly and clumsily in a situation where one is likely to cause a damage or injury笨手笨脚闯祸的; 行动（或说话）鲁莽的。
like a red rag to a bull
- 见RED.
take the bull by the horns
- deal decisively with a difficult, dangerous, or unpleasant situation不畏艰险, 勇于面对困难。
词源
late Old English bula (recorded in place names)， from Old Norse boli. Compare with BULLOCK.
- a papal edict教皇诏书。
词源
Middle English: from Old French bulle, from Latin bulla 'bubble， rounded object' （in medieval Latin 'seal or sealed document'）.