- One that compresses, especially: (noun)
- Mechanics A pump or other machine that increases the pressure of a gas. (noun)
- Medicine An instrument or device that compresses, such as a forceps or clamp. (noun)
- Anatomy A muscle that causes compression of a body part. (noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.