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