a guitar with the atmospheric stress as measured because of the change in the boiling-point of liquid to determine land elevations.
a guitar that measures height ultimately by calculating the boiling point of liquid (which differs with atmospheric pressure).
a guitar for measuring levels by observation of barometric stress; esp., one for identifying levels by ascertaining the boiling point of liquid. It consists of a vessel for liquid, with a lamp for warming it, and an inclosed thermometer for showing the temperature of ebullition.
A thermometrical barometer for calculating altitudes.
an altimeter that utilizes the boiling-point of liquid to find out land elevation