1. able to burn or corrode organic tissue by chemical action
Usage: chemistry
2. harshly critical or sarcastic in a bitter way

1. a caustic substance
Usage: chemistry

Examples

• The caustic chemical burned through the metal container.
• Sodium hydroxide is a caustic substance that requires careful handling.
• Her caustic remarks about his performance left him feeling hurt.
• The critic’s caustic review destroyed the restaurant’s reputation.
• The laboratory stored various caustics in specially marked containers.
• His caustic wit made him both feared and admired.
• Workers must wear gloves when handling caustic materials.