noun, noun which may take the genitive case particle 'no'
caustic
Technical term used in chemistry to describe substances that can burn or corrode organic tissue. Often appears in compound terms like 苛性ソーダ (caustic soda).
苛性ソーダは強力なアルカリです。
Caustic soda is a strong alkali.
この薬品は苛性があるので、取り扱いに注意してください。
This chemical is caustic, so please handle it with care.
腐食性 (corrosive) emphasizes the ability to destroy materials gradually, while 苛性 (caustic) specifically refers to burning or corroding organic tissue.
The kanji 苛 means 'torment' or 'severe', and 性 means 'nature' or 'property', together forming the concept of a harsh, burning quality. The exact historical derivation is uncertain, but the term is used in modern Japanese as a direct translation of the English 'caustic' in scientific contexts.