caustic soda

1. 1.

   a strongly alkaline caustic used in manufacturing soap and paper and aluminum and various sodium compounds

   Synonymssodium hydroxide

   Broaderhydroxidelye

Questions about caustic soda

What does caustic soda mean?

caustic soda means "a strongly alkaline caustic used in manufacturing soap and paper and aluminum and various sodium compounds".

What is another word for caustic soda?

Close synonyms include sodium hydroxide. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is caustic soda a common word?

caustic soda is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.