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