hospitalization
US /ˈhɑː.spɪ.t̬əl.əˈzeɪ.ʃən/
UK /ˈhɑː.spɪ.t̬əl.əˈzeɪ.ʃən/

1.
the act of admitting someone to a hospital as a patient
:
•
His condition required immediate hospitalization.
•
The doctor recommended hospitalization for further tests.