IPA: /ˌkæl.əˈrɪm.ə.tri/
KK: /kæləˈrɪmətri/
The process of measuring the heat produced or absorbed during a chemical reaction or physical change.
Calorimetry is essential in understanding how much energy is involved in chemical reactions.
Calorimetry is formed from "calor" (from Latin, meaning heat) and "-metry" (from Greek "metria", meaning measurement). The word refers to the measurement of heat.
Think of 'calor' meaning heat and '-metry' meaning measurement — calorimetry is all about measuring heat.