What is brimstone definition?

Brimstone is a yellow sulfur that has been in use since ancient times as a fumigant and as a component of medicines, fireworks, and matches. It is also known as sulfur and has a distinctive odor which is often described as rotten eggs. It is a highly reactive chemical with many industrial and agricultural applications, including the refinement of petroleum, the production of rubber, and as a fungicide and insecticide. Brimstone has a variety of uses in religious practices and folklore, and is mentioned in the Bible as a symbol of wrath and punishment.