caustic soda
noun1
Usually sodium hydroxide (NaOH), a strong alkaline substance used in the manufacture of paint, soap and detergents, or as a drain cleaner.
- Synonyms
- lye
- Hypernyms
- alkali
- Holonyms
- sooji-mooji
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.