気 泡(きほう)

きほう

noun

air bubble; bubble

1. air bubble; bubble

A small pocket of air or gas trapped in a liquid, solid, or other material. Used in both everyday and scientific contexts.

水(みず)の中(なか)に気泡(きほう)ができた。

Bubbles formed in the water.

ガラスの中(なか)に小(ちい)さな気泡(きほう)が見(み)える。

You can see small air bubbles inside the glass.

コンクリートに気泡(きほう)が入(はい)ると強度(きょうど)が下(さ)がるので注意(ちゅうい)が必要(ひつよう)だ。

If air bubbles get into concrete, the strength decreases, so care is needed.

Refers specifically to bubbles of air or gas, whether in liquids, solids, or materials. More precise and technical than 泡(あわ), which is the general word for foam or bubbles.

Common collocations

気泡(きほう)が入(はい)る — for air bubbles to get in
気泡(きほう)ができる — for bubbles to form
気泡(きほう)を取(と)り除(のぞ)く — to remove air bubbles
気泡(きほう)緩衝材(かんしょうざい) — bubble wrap (bubble cushioning material)

Similar words

泡(あわ) — bubble, foam; the everyday general word for bubbles, including soap bubbles and foam on beer
水泡(すいほう) — water bubble; also used figuratively in 水泡(すいほう)に帰(き)する (to come to nothing)
泡沫(うたかた) — ephemeral bubble; literary word suggesting something fleeting

general

Added 2026.5.7 22:10 · Revised 2026.9.2 13:02

27000/27146_kihou