Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun caustic_soda

1 sense of caustic soda

Sense 1
sodium hydroxide, caustic soda -- (a strongly alkaline caustic used in manufacturing soap and paper and aluminum and various sodium compounds)
       => hydroxide, hydrated oxide -- (a compound of an oxide with water)
       => lye -- (a strong solution of sodium or potassium hydroxide)