What is another word for heat unit?
Pronunciation: [hˈiːt jˈuːnɪt] (IPA) 
Heat unit is a term used in various fields to measure thermal energy. However, depending on the context, there are several synonyms that can be used instead of heat unit. In agriculture and horticulture, the term "growing degree day" (GDD) is used. In meteorology and climatology, "degree day" is commonly used, or the related "heating degree day" (HDD) and "cooling degree day" (CDD) metrics. In engineering and thermodynamics, "thermal energy" or "heat energy" can be used interchangeably with heat unit. Additionally, other terms such as "calorie", "British Thermal Unit" (BTU), and "joule" are also synonyms for heat unit but are less commonly used.
