pneumatic.

1. Using compressed air or another gas to transmit force or operate a mechanism.

2. Having air-filled spaces or cavities, especially in bone or another anatomical structure.

Use it for

Words that belong together

• pneumatic actuator
• pneumatic door

On the page

The pneumatic door closed with a measured hiss.

A pneumatic actuator lifted the clamp away from the sample.

Usage notes

Primary category: sci-fi. Forms: Normally non-gradable in this technical classification; degree language only if a specific measurable context supports it. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings.