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