Japanese Conversation · Level 131
60 words
Japanese word
膨張
Pronunciation
Romajibōchō
Meaning
- nounexpansion
Example
熱で気体が膨張します。netsu de ki tai ga bō chō shi ma su
The gas expands because of heat.
More examples
温度が上がると、金属の膨張を見込んで設計します。on do ga a ga ru to kin zoku no bō chō o mi ko n de sek kei shi ma su
As temperatures rise, we account for the expansion of metal in our designs.
Core concept
Indicates that a substance, system, or activity grows beyond its earlier size or range.
Common phrases
膨張を抑えるbō chō o osa e ru
control expansion
膨張の原因bō chō no gen in
cause of expansion
Similar words
拡大kakudai: Growth in physical size, scale, or scope, without specifying its cause or direction.
拡張kakuchō: An increase in range, capacity, or function, often resulting from a planned extension.
増大zōdai: An increase in size, amount, or degree, often used in formal descriptions of measurable change.
Definition in Japanese
熱などの作用で物質がふくらむこと。また、物事の規模が広がること。netsu na do no sa yō de bus shitsu ga fu ku ra mu ko to ma ta mono goto no ki bo ga hiro ga ru ko to
Word origin
膨張 (bōchō) is a Sino-Japanese compound of 膨 (bō, "to swell") and 張 (chō, "to extend"), describing enlargement beyond a former state.
Usage tips
- In physics, thermal expansion explains why many materials occupy more space when their temperature rises.
Other meanings
- growthnoun
- swellingnoun
Opposites
- 収縮shūshukucontractionnoun
Related words
- 膨張率bōchōritsuexpansion ratenoun
- 膨張性bōchōseiexpandabilitynoun