1. plural of irritability; the quality or state of being easily annoyed, angered, or made impatient
Usage: countable and uncountable uses; often refers to a tendency or disposition
2. in biology, the capacity of an organism or cell to respond to stimuli
Usage: technical; used in physiology and medicine

Examples

• The patient's irritabilities increased after the medication change.
• Stress and lack of sleep can heighten irritabilities in most people.
• Her irritabilities made it difficult for her to work in a team environment.
• The doctor noted various irritabilities in the patient's nervous system.
• Hormonal changes sometimes cause irritabilities during adolescence.
• His irritabilities were a sign that he needed a vacation.