1. The quality or state of being caustic; harshness or severity, especially in speech or manner.
Usage: Plural form of causticity; Often used in formal or literary contexts
2. The quality of being chemically corrosive or burning; the property of a caustic substance.
Usage: Technical or scientific usage; Refers to chemical properties

Examples

• The critic's causticities in her reviews were known throughout the literary world.
• His causticities toward his opponents made him unpopular at the debate.
• The causticities of the chemical solution required careful handling in the laboratory.
• She delivered her remarks with such causticities that the audience fell silent.
• The causticities of his wit were both admired and feared by his colleagues.
• The causticities of sodium hydroxide make it dangerous to handle without protection.