noun
- a system or device that uses air pressure or vacuum to transport mail, documents, or small objects through tubes
Usage: also called pneumatic tube system; chiefly historical or technical
Examples
- The bank used an airvac system to send documents between floors quickly.
- Before email, offices relied on airvac networks to move paperwork around the building.
- The airvac tubes whooshed as capsules traveled through the network.
- Department stores once used airvac systems to transport cash from registers to the office.