Translation guide
The Japanese word for oxygen is 酸素 (さんそ). This is the standard term used in science, medicine, and everyday contexts. There are no common alternative words or major pitfalls for learners.
酸素
oxygen
Referring to the gas oxygen in scientific, medical, or general contexts.
The standard Japanese word for oxygen. Used in all contexts: chemistry, biology, medicine, and daily life.
水は水素と酸素からできている。
Water is made of hydrogen and oxygen.
酸素ボンベが必要です。
We need an oxygen tank.