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| Tor·ri·cel·li·an vac·u·um [ tàwree chèllee ən vákyoo əm, tàwree chèllee ən vákyəm ] (plural Tor·ri·cel·li·an vac·u·ums or Tor·ri·cel·li·an vac·u·a) |
noun |
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| Definition: |
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partial vacuum in tube containing mercury: the partially evacuated space above a column of mercury in a tube that is closed at one end and has been placed open end down onto a mercury reservoir
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| [After Evangelista Torricelli] |
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