1. tending to expel or drive out; having the power or function of expulsion
Usage: formal; often used in medical or technical contexts
2. relating to or characterized by the act of forcing someone to leave a place or institution
Usage: formal

Examples

• The expulsive force of the volcano sent ash miles into the atmosphere.
• Doctors prescribed medication to aid the expulsive contractions during labor.
• The school's expulsive policies were designed to maintain discipline.
• The expulsive mechanism of the device removes unwanted particles automatically.
• An expulsive cough cleared the mucus from his airways.
• The expulsive action of the pump moved water through the system efficiently.