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