1. Material or substance used in the process of drilling or boring holes, such as in mining, construction, or geological exploration
The engineers selected a specialized boring material to drill through the hard rock layer.
Os engenheiros selecionaram um material de perfuração especializado para perfurar a camada de rocha dura.
2. Any dull, uninteresting, or tedious subject matter or content
The lecture was filled with boring material that put everyone to sleep.
A palestra estava cheia de conteúdo monótono que adormeceu todos.