光化学

光化學

guānghuàxué

noun

Meanings

Guānghuàxué shì huàxué de yīgè zhòngyào fēnzhī.

Photochemistry is an important branch of chemistry.

Guānghuàxué fǎnyìng tōngcháng xūyào zǐwàiguāng.

Photochemical reactions usually require ultraviolet light.

Guānghuàxué yānwù duì chéngshì kōngqì wūrǎn yánzhòng.

Photochemical smog is a serious form of urban air pollution.

memory

Read it left to right: 光 (light) + 化学 (chemistry) = 'light chemistry,' i.e. photochemistry — the study of how light drives chemical reactions.

光 guāng

化 huà

学 xué