Definition of calorimeter in English:



  • An apparatus for measuring the amount of heat involved in a chemical reaction or other process.

    • ‘The reaction takes place in an apparatus called a calorimeter, which is specially designed to completely insulate the reaction system so no heat is gained from or lost to the surrounding environment.’
    • ‘The cells were stabilized for 4 hours at 25 degrees celsius inside the calorimeter before heating up to the final temperature at a heating rate of 0.5 degrees celsius per minute.’
    • ‘It functions as what physicists call a calorimeter, measuring the total energy of the deposited gamma rays.’
    • ‘This calorimeter, which contains 400 kilograms of liquid krypton, detected the photon pairs.’
    • ‘They used the ice calorimeter to measure the heat given off by a guinea pig as it breathed oxygen, relating this heat to that of a chemical reaction occurring inside the animal.’


Late 18th century: from Latin calor ‘heat’ + -meter.