Meaning of CAVITATION in English

CAVITATION

[ ˌkavɪ'teɪʃ(ə)n ]

■ noun Physics

1》 the formation of an empty space within a solid object or body.

2》 the formation of bubbles in a liquid by the movement of an object through it.

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.