1
- in sing. a whirring sound, such as a telephone ringing tone or the sound of cogs turning颤动音。
1.1
- a rough pronunciation of the letter r, especially with a uvular trill as in a Northumberland accent小舌颤音。
1.2
- (loosely) a regional accent（宽泛意义上）地方口音：
a soft Scottish burr.
轻柔苏格兰口音。
2
- （亦作bur）a rough edge or ridge left on an object (especially of metal) by the action of a tool or machine（尤指金属的）毛边, 毛口。
2.1
- the irregular edge of a dog's ear（狗的）不平外耳廓。
3
- （亦作bur）a small rotary cutting tool with a shaped end, used chiefly in woodworking and dentistry牙钻, 木钻。
3.1
- a small surgical drill for making holes in bone, especially in the skull骨钻。
4
- mass noun a siliceous rock used for millstones硬石。
4.1
- count noun a whetstone磨石。
5
- （亦作bur）a prickly seed case or flower head that clings to clothing and animal fur刺果; 刺球状花序。
5.1
- usu. as modifier a plant that produces burrs, for example bur-reed生刺果的植物。
6
- （亦作bur）[as modifier] denoting wood containing knots or other growths which show a pattern of dense swirls in the grain when sawn, used for veneers and other decorative woodwork树瘤木纹：
burr walnut.
树瘤木纹胡桃木。
7
- the coronet of a deer's antler鹿茸冠。
1
- no obj. make a whirring sound such as a telephone dialling tone or the sound or cogs turning发出嗡嗡声。
1.1
- speak with a regional accent, especially one of which the letter r is prominent说话带地方口音（尤指颤r音）：
with direct speech 'I like to have a purrrpose', she burrs.“我喜欢做事有目——的性”, 她带着颤r音说。
ORIGIN: probably imitative.
2
- with obj. form a rough edge on (metal)形成毛边。
短语
burr under someone's saddle
- N. Amer. informal a persistent source of irritation〈北美, 非正式〉恼人的事, 令人烦恼的事：
he had been a burr under the saddle of the government in his time.
在他那时代, 他一直是当局的眼中钉, 肉中刺。
词源
Middle English (sense)： probably of Scandinavian origin and related to Danish burre 'bur， burdock'， Swedish kard-borre 'burdock'.