IPA: /ˌkæl.əˈrɪf.ɪk/
KK: /kæləˈrɪfɪk/
This word describes something that produces heat or calories, often used in the context of food and energy.
Foods that are high in fat are often considered to be calorific.
Calorific is formed from "calor" (from Latin, meaning heat) and "-ific" (from Latin "facere", meaning to make or produce). The word refers to something that produces or generates heat.
Think of 'calor' meaning heat and '-ific' meaning to make — so calorific describes something that makes heat.