Where does this definition of motion study come from?
This entry for motion study is sourced from Main Dictionary, one of the dictionaries and corpora merged into Lughet.
Is motion study a noun, verb, or something else?
In this entry, motion study is tagged as 2n..
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.