1. Non-living or inanimate material; matter that lacks life or biological activity
Dead matter such as rocks and minerals form the foundation of the Earth.
Matéria inerte como rochas e minerais formam a base da Terra.
2. In printing, typeset material that is no longer needed or has been discarded
The printer removed the dead matter from the printing press.
O impressor removeu a matéria inerte da prensa de impressão.
3. Decaying organic material or decomposed biological matter
Dead matter accumulates on the forest floor as fallen leaves decompose.
Matéria morta acumula-se no chão da floresta enquanto as folhas caídas se decompõem.