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