泡あわぶく

noun

bubble; foam; froth

Dated term for bubbles or foam, especially from saliva. Modern Japanese more commonly uses 泡 (あわ) or 泡立つ (あわだつ).

• 赤あかちゃんの口くち元もとに泡あわぶくが浮うかんでいた。

  Bubbles of saliva were forming at the baby's mouth.