Chaff refers to the lightweight debris that is produced during various processes, such as agriculture and food production. In farming, chaff consists of the husks and straw that are separated from grains like wheat and rice during harvesting. This material is often discarded or used as animal bedding or compost. In a broader context, chaff can also refer to any unwanted material or waste that is generated in different industries. For example, in aerospace, chaff is used as a countermeasure to confuse radar systems by creating false targets. This helps protect aircraft from detection and potential threats.