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