What does 波动 (bōdòng) mean in English?

Card 183HSK Level 4183/3571
CARD183
PROGRESS5%
波动
波動
bōdòng
popple(Verb)
Click to reveal
← Previous↑ DeckNext →

Reveal: Click/Space/Enter/↑↓/w/s/j/k•Navigate: ←→/h/l/a/d