When the two parts of a suspension are separated by pouring the lighter less dense portion off of the heavier one?

When the two parts of a suspension are separated by pouring off the lighter, less dense portion, this process is called decantation. The lighter liquid, often referred to as the supernatant, is carefully poured off to leave behind the heavier sediment or precipitate at the bottom. This method relies on the differences in density to achieve separation without the need for filtration. However, some of the heavier particles may still remain in the lighter liquid if not done carefully.