気泡

1. Origins, structure, and basic meaning

• Structure: 気泡 is read きほう and is a noun for a small pocket of gas in a liquid or solid.
• Basic usage: It is used for bubbles trapped in glass or rising through boiling water.

2. Common pitfalls and similar expressions

• State and movement
  • It pairs naturally with 残る when a bubble remains in a material and with 上がる when bubbles rise through liquid.