This is the 5074th most frequent Spanish word.
expulsado
"Expulsado" means "expelled" in English.
In this sentence, 'expulsado' is the past participle of the verb 'expulsar', used to describe the student as having been removed from the school.
El estudiante fue expulsado de la escuela por su mal comportamiento.
The student was expelled from school for his bad behavior.
Here, 'expulsado' is used in its passive form to describe the action of gases being forced out from the tube by a process.
Los gases son expulsados del tubo durante el experimento.
The gases are expelled from the tube during the experiment.
In this context, 'expulsado' conveys that the individual was officially removed from team membership because of their actions.