真 空(しんくう)

しんくう

noun

vacuum

1. vacuum

A space entirely devoid of matter, or a space with greatly reduced air pressure.

宇宙(うちゅう)は真空(しんくう)の状態(じょうたい)だ。

Space is in a vacuum state.

真空(しんくう)パックで食品(しょくひん)を保存(ほぞん)する。

I preserve food in vacuum packs.

真空パック is a common compound

真空(しんくう)状態(じょうたい)では音(おと)が伝(つた)わらない。

Sound doesn't travel in a vacuum.

COMMON COMPOUNDS:

真空(しんくう)パック (vacuum pack/packaging)
真空(しんくう)管(かん) (vacuum tube)
真空(しんくう)掃除機(そうじき) (vacuum cleaner) - though this is different from scientific vacuum
真空(しんくう)状態(じょうたい) (vacuum state/condition)

SCIENTIFIC NOTE:
In physics, a "perfect vacuum" is theoretical. In everyday use, 真空(しんくう) often refers to low-pressure environments or vacuum packaging for food preservation.

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general

Added 2026.1.13 22:58 · Revised 2026.5.30 5:14

04000/04174_shinkuu