Where does this definition of British thermal unit come from?
This entry for British thermal unit is sourced from GetWord Corpus, one of the dictionaries and corpora merged into Lughet.
Is British thermal unit a noun, verb, or something else?
In this entry, British thermal unit is tagged as 2n..
What is Lughet?
Lughet is a free trilingual dictionary covering nearly five million entries across Uyghur, Chinese, and English, drawn from more than ten source dictionaries and corpora.