Where does this definition of back wave come from?
This entry for back wave is sourced from Main Dictionary, one of the dictionaries and corpora merged into Lughet.
Does back wave appear elsewhere on Lughet?
Yes — back wave 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.