Dictionary entry

Hypsometer

Webster's Dictionary 1913

Hyp‐som″e‐ter (?), n. [Gr. � height + -meter.] (Physics) An instrument for measuring heights by observation of barometric pressure; esp., one for determining heights by ascertaining the boiling point of water. It consists of a vessel for water, with a lamp for heating it, and an inclosed thermometer for showing the temperature of ebullition.