
weather-glass
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http://phrontistery.info/b.html

• (n.) Any instrument showing the changes in the weight of the atmosphere; also, less appropriately, any instrument that indicates -or foreshadows changes of the weather, as a deep vial of liquid holding in suspension some substance which rises and falls with atmospheric changes.
Found on
http://thinkexist.com/dictionary/meaning/baroscope/

<instrument> Any instrument showing the changes in the weight of the atmosphere; also, less appropriately, any instrument that indicates -or foreshadows changes of the weather, as a deep vial of liquid holding in suspension some substance which rises and falls with atmospheric changes. ... Origin: Gr. Weight + -scope: cf. F. Baroscope. ... So...
Found on
http://www.encyclo.co.uk/local/20973
Bar'o·scope (băr'o*skōp)
noun [ Greek
baros weight +
-scope : confer French
baroscope .] Any instrument showing the changes in the weight of the atmosphere; also, less appropriately, any instrument that indicates or foreshadows changes of the weather, as a deep vial ...
Found on
http://www.encyclo.co.uk/webster/B/16

Type: Term Pronunciation: bar′ō-skōp Definitions: 1. An instrument measuring changes in atmospheric pressure.
Found on
http://www.medilexicon.com/medicaldictionary.php?t=9519

baroscope, baroscopic 1. An instrument that shows changes in the pressure of the atmosphere. 2. In physics, an apparatus for showing the loss of weight of objects in air, and that this loss is equal to the weight of the air displaced by them.
Found on
http://www.wordinfo.info/words/index/info/view_unit/2394/3
No exact match found.