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