MEANING: noun:
1. A device for determining atmospheric pressure in predicting weather.
2. Something used as a gauge or as an indicator of change.
3. A standard for measuring something.

ETYMOLOGY: From Greek baro- (pressure) + -meter (measure). Earliest documented use: 1666.

BALOMETER - a CRAP filter; measures the reliability and amount of nonsense

BARMETER - evaluates the desirability of a drinking/socializing emporium

CAROMETER - tool for deciding on the correct angle for a bank shot