pneumatic

UK: njuːˈmætɪk | US: nuːˈmætɪk

Definition
  1. adj. relating to or using air or gas under pressure

  2. adj. light or insubstantial in a way resembling air

Structure
pneum <air, breath (from Greek *pneuma*)>atic <adjective suffix>
Etymology

The word "pneumatic" traces back to the Greek pneuma (πνεῦμα), meaning "breath" or "wind." This root reflects the concept of air as a life-giving or motive force. The suffix -atic (from Latin -aticus) forms adjectives, giving the word its modern meaning of "pertaining to air or gas." Historically, pneumatic devices (like pumps or tools) harnessed compressed air, reinforcing the connection between the root and mechanical applications. The term also metaphorically describes things that feel "airy" or lightweight.

Examples
  1. The factory uses pneumatic tools for faster assembly.

  2. Her dress had a pneumatic quality, floating around her as she moved.

  3. Ancient Greeks believed in pneumatic forces governing the universe.

  4. The engineer designed a pneumatic system to transport materials.

  5. The mattress features pneumatic chambers for adjustable firmness.