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