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