An abscess is a collection of pus in any part of the body. In most cases, the area around an abscess is swollen and inflamed. Abscesses occur when an area of tissue becomes infected and the body's immune system tries to fight it. White blood cells (WBCs) move through the walls of the blood vessels into the area of the infection and collect in the damaged tissue. During this process, pus forms.
Define casting: something (such as the excrement of an earthworm) that is cast out or off; the act of one that casts: such as â casting in a sentence something (such as the excrement of an earthworm) that is cast out or off; the act of one that casts: such asâ¦ See the full definition
Casting (metalworking) In metalworking, casting means a process, in which liquid metal is poured into a mold, that contains a hollow cavity of the desired shape, and is then allowed to cool and solidify. The solidified part is also known as a casting, which is ejected or broken out of the mold to complete the process.