Torricellian tube
Torricellian Tor`ri*cel"li*an, a. Of or pertaining to Torricelli, an Italian philosopher and mathematician, who, in 1643, discovered that the rise of a liquid in a tube, as in the barometer, is due to atmospheric pressure. See {Barometer}. [1913 Webster]

{Torricellian tube}, a glass tube thirty or more inches in length, open at the lower end and hermetically sealed at the upper, such as is used in the barometer.

{Torricellian vacuum} (Physics), a vacuum produced by filling with a fluid, as mercury, a tube hermetically closed at one end, and, after immersing the other end in a vessel of the same fluid, allowing the inclosed fluid to descend till it is counterbalanced by the pressure of the atmosphere, as in the barometer. --Hutton. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • torricellian tube — noun Usage: usually capitalized 1st T : a glass tube open at one end and hermetically sealed at the other and of such length that when filled with a liquid (as mercury) and immersed at the open end in a vessel of the same liquid allowing the… …   Useful english dictionary

  • Torricellian tube — /tɒrətʃɛliən ˈtjub/ (say toruhcheleeuhn tyoohb) noun a vertical and partially evacuated glass tube which is sealed at the top but open at the bottom to a reservoir of liquid which rises or falls in the tube in response to atmospheric pressure;… …   Australian English dictionary

  • Torricellian — Tor ri*cel li*an, a. Of or pertaining to Torricelli, an Italian philosopher and mathematician, who, in 1643, discovered that the rise of a liquid in a tube, as in the barometer, is due to atmospheric pressure. See {Barometer}. [1913 Webster]… …   The Collaborative International Dictionary of English

  • Torricellian vacuum — Torricellian Tor ri*cel li*an, a. Of or pertaining to Torricelli, an Italian philosopher and mathematician, who, in 1643, discovered that the rise of a liquid in a tube, as in the barometer, is due to atmospheric pressure. See {Barometer}. [1913… …   The Collaborative International Dictionary of English

  • torricellian vacuum — n. a vacuum formed when mercury in a long tube closed at one end is inverted with the open end in a reservoir of mercury (the principle on which a barometer is made). Etymology: Torricelli: see TORR * * * noun Usage: usually capitalized T : the… …   Useful english dictionary

  • Torricellian vacuum — Vacuum Vac u*um, n.; pl. E. {Vacuums}, L. {Vacua}. [L., fr. vacuus empty. See {Vacuous}.] 1. (Physics) A space entirely devoid of matter (called also, by way of distinction, absolute vacuum); hence, in a more general sense, a space, as the… …   The Collaborative International Dictionary of English

  • torricellian vacuum — the vacuum in a barometric tube …   Medical dictionary

  • Torricellian vacuum — [ˌtɔ:rɪ tʃɛlɪən, sɛlɪən] noun a vacuum formed above the mercury column in a barometer when the tube is longer than the height of mercury sustainable by atmospheric pressure. Origin from the name of the 17th cent. Italian mathematician and… …   English new terms dictionary

  • Vacuum tube — Vacuum Vac u*um, n.; pl. E. {Vacuums}, L. {Vacua}. [L., fr. vacuus empty. See {Vacuous}.] 1. (Physics) A space entirely devoid of matter (called also, by way of distinction, absolute vacuum); hence, in a more general sense, a space, as the… …   The Collaborative International Dictionary of English

  • TORRICELLI, EVANGELISTA —    a celebrated Italian physicist; devoted himself to science, and attracted the attention of Galileo, whom he subsequently succeeded as professor at the Florentine Academy; discovered the scientific principle of the barometer, which is sometimes …   The Nuttall Encyclopaedia

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