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