Definitions for "Variometer"
An instrument for comparing magnetic forces, esp. in the earth's magnetic field.
A instrument designed to study small fluctuations of some quantity. The microbarograph is an example of a recording pressure variometer.
the instrument which measures the rate of ascent or descent of the balloon. "Up, Up & Away!"
An inductor whose total inductance can be varied either by altering the relative position of two coaxial coils connected in series or by the use of permeability tuning, and thus can be used to tune a circuit.
The term Variometer also refers to a type of tunable electrical transformer