Filtration is a process used to separate particles from a liquid or gas. It involves passing the liquid or gas through a FILTER, which traps the particles and allows the liquid or gas to pass through. The term 'filtration' is derived from the Latin word filtrum, meaning 'STRAINER.' The process of filtration can be used to separate solids from liquids, such as in the process of brewing coffee. It can also be used to separate gases, such as in air purification systems. The terms 'separate, ' 'OSMOSE, ' 'SEEP, ' and 'FILTER' all refer to different aspects of the filtration process. Separate refers to the act of separating particles from a liquid or gas. OSMOSE is the process of a liquid or gas passing through a membrane. SEEP is the process of a liquid slowly passing through a porous material. FILTER is the device used to separate particles from a liquid or gas.