Undulation

"Undulation" in bg

вълнение

vǎlnenie

(instance or act)

вълнистост

vǎlnistost

(appearance or outline)

вълнообразно движение

vǎlnoobrazno dviženie

(wavelike motion)

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.