The term 'Absence of Matter' can be summarized as a VACUUM, which is a space that contains no matter. A VACUUM is an area of space that has been emptied of all matter, including air, dust, and other particles. This type of environment is often used in scientific experiments and industrial processes, such as VACUUM cleaners and VACUUM tubes. Vacuums are also used to create a low-pressure environment, which can be beneficial for certain types of research.