evacuable

Evacuable is an adjective meaning capable of being evacuated, i.e., emptied of air, gas, liquid, or contents through an evacuation process. It is commonly used in technical and industrial contexts to describe spaces, vessels, or components that can be brought to a lower pressure or emptied of materials.

In vacuum technology and engineering, an evacuable chamber or vessel is designed to be evacuated to a low pressure or vacuum, usually with pumps and seals that allow removal of air and other gases. Evacuable components are essential in processes such as coating, electron microscopy, semiconductor fabrication, and cryogenics, where exposure to air is undesirable or where a controlled low-pressure environment is required.

Outside of vacuum systems, the term may apply to safety or maintenance contexts in which spaces or equipment are designed to be emptied quickly or to be purged of hazardous contents, facilitating safe evacuation or servicing.

The word is formed from Latin evacuare "to empty," via French evacuable and English adaptation. Spelling variants exist such as evacuable and evacuatable in some sources, though evacuable is common in many technical texts.

See also

vacuum, vacuum chamber, evacuate, evacuation.