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