Where does this definition of boiler retarder come from?
This entry for boiler retarder is sourced from Main Dictionary, one of the dictionaries and corpora merged into Lughet.
Does boiler retarder appear elsewhere on Lughet?
Yes — boiler retarder appears under other sources or language pairs in Lughet's collection. See the list below.
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.