burr
n. countable B2 Upper Intermediate US //ˈbɝ// UK //bˈɜː// burr
n. a small, sharp seed or fruit that sticks to clothes and hair. You often find them after walking through tall grass or fields.
n. a small, hooked seed or fruit that adheres to fabric and animal fur. Also refers to a rough, raised mass of metal or wood left by a tool.
I pulled a burr from my dog's fur.
After the hike, she spent ten minutes picking burrs from her socks.
The engineer used a grinding wheel to remove the sharp burr left on the edge of the newly cut steel plate.