乳酸 (rǔsuān): lactic acid

Meanings

Jùliè yùndòng hòu jīròu zhōng huì jīlěi dàliàng rǔsuān.

After vigorous exercise, large amounts of lactic acid accumulate in muscles.

Rǔsuānjūn zài fājiào guòchéng zhōng chǎnshēng rǔsuān.

Lactic acid bacteria produce lactic acid during fermentation.

memory

乳 (milk/breast) + 酸 (sour/acid) = milk acid. Lactic acid was first isolated from sour milk, and the connection to dairy is preserved in the name.

乳 rǔ

酸 suān