bur

A noun referring to a seed vessel or flower head that has hooks or prickles, or a small rotary cutting tool used in dentistry or surgery.

• 🇵🇹Substantivo que designa a flor ou cápsula de sementes com espinhos ou ganchos que gruda em roupas e pelos de animais; também se refere a uma pequena broca rotativa usada em odontologia ou cirurgia.

1. Prickly seed vessel B2 formal

   A seed vessel or dry fruit that has hooks or prickles, allowing it to cling to animal fur or clothing for dispersal.

   • The dog came back from the walk covered in burs.
   • She carefully removed the bur from her sweater.
   • Burs are an adaptation for seed dispersal by animals.

   🇵🇹Semente espinhosa

   Sinônimos: burr

2. Dental or surgical tool B2 formal medical

   A small rotary cutting bit used in dentistry or surgery for drilling, shaping, or removing material.

   • The dentist used a bur to remove the decayed part of the tooth.
   • Surgeons employ a specialized bur for precise bone shaping.
   • The dental bur spins at a very high speed.

   🇵🇹Broca odontológica

   Sinônimos: burr

• burs plural form
• burs' possessive plural form
• bur's possessive singular form

An archaic or obsolete verb meaning to lodge or take shelter; also a variant of 'burr' meaning to speak with a rough accent or to make a whirring sound.

• 🇵🇹Verbo arcaico ou em desuso que significa abrigar-se ou encontrar refúgio; também é variante de 'burr', que significa falar com sotaque gutural ou emitir um zumbido.

1. Remove burrs B2 formal

   To remove the rough, prickly seed cases or sharp edges from a surface or material.

   • He carefully burred the metal edge to make it smooth.
   • The gardener burred the plant to prevent the seeds from sticking.
   • She used a file to bur the rough spots on the wood.

   🇵🇹Rebarbar

• burred past participle
• burred past simple
• burring present participle
• burs third person singular