Of or relating to the production of heat; having calorific properties or capable of producing thermal energy.
Extended form of 'calorific' with the additional suffix '-al,' creating a more elaborate adjectival form that was common in 18th and 19th-century scientific English.
Calorifical is an example of how English scientists liked to add extra suffixes to Latin-derived words to make them sound more authoritative—'calorifical' is basically just a fancier way of saying 'calorific' with no real difference in meaning.
Complete word intelligence in one call. Free tier — 50 lookups/day.