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Meaning of BAROMETER

Pronunciation:  bu'râmitur

WordNet Dictionary
[n]  an instrument that measures atmospheric pressure

BAROMETER is a 9 letter word that starts with B.


 See Also: aneroid, aneroid barometer, barograph, measuring device, measuring instrument, measuring system, mercury barometer, weatherglass



Webster's 1913 Dictionary
\Ba*rom"e*ter\, n. [Gr. ? weight + -meter: cf. F.
An instrument for determining the weight or pressure of the
atmosphere, and hence for judging of the probable changes of
weather, or for ascertaining the height of any ascent.

Note: The barometer was invented by Torricelli at Florence
      about 1643. It is made in its simplest form by filling
      a graduated glass tube about 34 inches long with
      mercury and inverting it in a cup containing mercury.
      The column of mercury in the tube descends until
      balanced by the weight of the atmosphere, and its rise
      or fall under varying conditions is a measure of the
      change in the atmospheric pressure. At the sea level
      its ordinary height is about 30 inches (760
      millimeters). See {Sympiesometer}. --Nichol.

{Aneroid barometer}. See {Aneroid barometer}, under

{Marine barometer}, a barometer with tube contracted at
   bottom to prevent rapid oscillations of the mercury, and
   suspended in gimbals from an arm or support on shipboard.

{Mountain barometer}, a portable mercurial barometer with
   tripod support, and long scale, for measuring heights.

{Siphon barometer}, a barometer having a tube bent like a
   hook with the longer leg closed at the top. The height of
   the mercury in the longer leg shows the pressure of the

{Wheel barometer}, a barometer with recurved tube, and a
   float, from which a cord passes over a pulley and moves an

Biology Dictionary
 Definition: An instrument that measures the pressure of the atmosphere.
Thesaurus Terms
 Related Terms: aerological instrument, aneroid barometer, aneroidograph, barograph, barometrograph, canon, check, criterion, degree, feeler, gauge, glass, graduated scale, hurricane-hunter aircraft, hygrometer, measure, model, norm, parameter, pattern, pilot balloon, probe, quantity, radiosonde, random sample, reading, readout, recording barometer, rule, sample, scale, sound, sounder, standard, straw vote, test, touchstone, trial balloon, type, vacuometer, value, weather balloon, weather instrument, weather satellite, weather vane, weathercock, weatherglass, yardstick