What is another word for pressureless space?
Pronunciation: [pɹˈɛʃələs spˈe͡ɪs] (IPA) 
A pressureless space can be described using various synonyms such as vacuum, empty space, or void. A vacuum is a space devoid of matter, including air molecules, and has little to no pressure. It is commonly seen in outer space where there is an absence of air and other forms of matter. An empty space is also a term used to describe a pressureless area, which is entirely lacking in any physical presence or matter, and there is little to no pressure. A void is another synonym that refers to an area that is without substance, and there is no pressure within the space. These terms are often used interchangeably to describe areas of space that lack pressure or physical presence.
