rarefier
/ˈrɛrəˌfaɪər/
noun
- A device or substance that makes something less dense, thinner, or more refined.
- This chemical rarefier helps to thin out the paint for a smoother finish.
- The vacuum pump acted as a rarefier, removing gas molecules from the container.
- The laboratory used a rarefier to reduce the air pressure inside the chamber.
Antonyms