What does 酸性 mean?
酸性 is a Japanese noun meaning “acidity” in English. It can also be translated as “acidic” depending on context. It is written as 酸性 in kanji, さんせい in hiragana, and sansei in romaji. This word is part of JLPT N3 vocabulary.
Example sentence
パイナップルやレモンのような酸性の果実はすっぱい。
Acid fruits like pineapples and lemons are sour.