expulsion

noun

1. 1

   the act of expelling or projecting or ejecting

2. 2

   the act of forcing out someone or something

   the ejection of troublemakers by the police

   the child's expulsion from school

3. 3

   squeezing out by applying pressure

   an unexpected extrusion of toothpaste from the bottom of the tube

   the expulsion of pus from the pimple