Dewar calorimeter

Dewar calorimeter

[¦dü·ər ‚kal·ə′rim·əd·ər]
(engineering)
Any calorimeter in which the sample is placed inside a Dewar flask to minimize heat losses.
A calorimeter for determining the mean specific heat capacity of a solid between the boiling point of a cryogenic liquid, such as liquid oxygen, and room temperature, by measuring the amount of the liquid that evaporates when the specimen is dropped into the liquid.