Meaning and Usage
"蒸気" (じょうき) refers to steam or vapor, typically water vapor produced by boiling or heating water. It is commonly used in scientific, industrial, and everyday contexts involving heat and moisture.
Common Contexts
You will often encounter "蒸気" when talking about baths, cooking, engines, or power generation. For example, steam from a hot bath fogs up mirrors, and steam engines use steam pressure to operate.
Collocations and Patterns
- 蒸気機関 (じょうききかん): steam engine; used in mechanical and historical contexts.
- 蒸気を出す: to emit steam; often used when describing boiling or heating processes.
- 蒸気圧 (じょうきあつ): steam pressure; technical term in physics and engineering.
Register and Nuance
"蒸気" is a neutral noun used in both formal and informal contexts. It is a technical term but also appears in daily conversation, especially when describing visible steam.
Common Mistakes
Learners sometimes confuse "蒸気" with "煙" (けむり, smoke). Remember, "蒸気" is vapor or steam (usually invisible or white mist), while "煙" is smoke from burning materials and is often darker and has a smell.