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