burr /bɜː $ bɜːr/ noun [countable]
[Sense 1,4: Date: 1600-1700; Origin: Probably from a Scandinavian language]
[Sense 2-3: Date: 1700-1800; Origin: Probably from the sound. ]

1. (also bur) the seed container of some plants, covered with sharp points that make it stick to things

2. British English a way of pronouncing English with a strong ‘r’ sound

3. a fairly quiet regular sound like something turning quickly Synonym : whirr:
the burr of a motor

4. a rough spot on a piece of metal

[TahlilGaran] Dictionary of Contemporary English ▲