Translation of "gnaw" into Portuguese

A cat was tearing at the door, and there was a sound of gnawing rats beneath the hearth-stone.

Um gato estava arranhando a porta, e ouviam-se ratos a roer sob a pedra da lareira.

He's now about to gnaw on my leg.

Ele está prestes a morder a minha perna.

Foxes or any member of the dog family, usually gnaws at bones leaving striations before the bone breaks.

Raposas ou qualquer membro da família cão, geralmente corrói ossos deixando estrias antes das fracturas ósseas.