sympiesometer /sim-pi-i-zomˈi-tər or -somˈ/

1. A barometer with a gas instead of a vacuum
2. An instrument for measuring the pressure of a current

• erroneousness
• erroneousnesses
• err on the safe side
• error
• errorist
• errorists
• errorless
• error message
• error messages
• errors
• hanger-on
• hanger-ons
• hangers
• hangers-on
• hang fire
• hangfire
• hangfires
• hang-glide
• hang-glided
• hang-glider
• hang-gliders
• hang-glides
• hang-gliding
• hangi
• hang in