泡あわが立たつ

expression, godan verb (-tsu)

bubble; foam; froth

Describes the formation of bubbles or foam on a liquid surface. Often used for soapy water, beer, or waves. The synonymous single verb 泡立つ (あわだつ) is also common.

See also: 泡立つ (あわだつ)

• ビールを注そそぐと泡あわが立たつ。

  When you pour beer, it foams.