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Torricellian vacuum

Line breaks: Tor¦ri|cel¦lian vac¦uum
Pronunciation: /ˌtɔːrɪˈtʃɛlɪən
 
, -ˈsɛlɪən/

Definition of Torricellian vacuum in English:

noun

A vacuum formed above the column of mercury in a mercury barometer.
Example sentences
  • Make two nested fields, then shrink the internal one to produce a Torricellian vacuum between the two fields.
  • As early as 1670, a French scientist, observed a bluish phosphorescence in the Torricellian vacuum of a barometer, after the mercury column had been shaken up and down.
  • I was concerned however, that the air at the top of the upright would be at a very low pressure, (Torricellian vacuum), and hence a regular airpump would not work.

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Word of the day orthoepy
Pronunciation: ˈɔːθəʊɛpi
noun
the correct or accepted pronunciation of words