1. Specially or decisively characteristic of a disease; indicating with certainty a disease; as, a pathognomonic symptom

Encyclopedia: Pathognomonic

• gas mileage
• gas oil
• gas oven
• gas pedal
• gas phlegmon
• gas plant
• gas pressure
• gas pump
• gas range
• gas ring
• gas service
• gas shell
• gas station
• gas stove
• gas system
• gas tank
• gas thermometer
• gas turbine
• gas up
• gas well
• gas-cooled reactor
• gas-discharge lamp
• gas-discharge tube
• gas-filled
• gas-tight