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