katathermometer
noun
kata·ther·mom·e·ter
| \ ˌkat-ə-thə(r)-ˈmäm-ət-ər
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Medical Definition of katathermometer
: a large-bulbed alcohol thermometer used to measure the cooling effect of particular atmospheric conditions (as on the human body) by increasing its temperature to well above the ambient temperature and then determining the time required for the indicated temperature to fall from one predetermined value to another