burr Definition

bur
burr
noun

1. Any seed or fruit with numerous hooks or prickles which are caught in the fur or feathers of passing mammals and birds, and so dispersed over considerable distances.
2. Any plant that produces such seeds or fruits.

Etymology: 14c.

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burr¹
noun

1. In some accents of English, such as that found in Northumberland: a rough ‘r' sound pronounced at the back of the throat.
2. A continual humming sound made eg by a machine.
3. A rough edge on metal or paper.
4. A small rotary drill used by a dentist or surgeon.

verb burred, burring

intr
1. To make a burring sound.
2. To pronounce something with a burr.

Etymology: 17c in sense 3; associated with bur, but perhaps also an imitation of the sound.

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burr² bur