mercury barometer


a barometer in which the weight of a column of mercury in a glass tube with a sealed top is balanced against that of the atmosphere pressing on an exposed cistern of mercury at the base of the mercury column, the height of the column varying with atmospheric pressure.

Nearby words

  1. mercurochrome,
  2. mercurous,
  3. mercurous chloride,
  4. mercury,
  5. mercury arc,
  6. mercury chloride,
  7. mercury fulminate,
  8. mercury mass,
  9. mercury poisoning,
  10. mercury program

Also called mercurial barometer. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019