Homonym: Caustic (Corrosive)
Caustic refers to substances that can burn or corrode organic tissue or destroy materials through chemical action. Common examples include strong acids like sulfuric acid and bases like sodium hydroxide. These substances are often used in industrial processes, cleaning agents, and chemical manufacturing.
In addition to its chemical meaning, "caustic" can also describe a sharp or biting manner of speaking. A caustic comment is one that is critical or sarcastic, often intended to hurt or provoke. This usage highlights the dual nature of the term, relating both to physical properties and social interactions.