Adjective
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.
Source: Webster's dictionaryThe column of mercury fell downwards, leaving a Torricellian vacuum above. citation Scientific developments Key ideas and people that emerged from the 16th and 17th centuries: * First printed edition of Euclid's Elements in 1482. Source: Internet
The weight of the mercury creates a vacuum in the top of the tube known as Torricellian vacuum. Source: Internet