Hospitalization/ˌhɑːspɪtələˈzeɪʃn/ Definition 1 of 2Pro Tip 1/3Medical Context Used when someone needs medical care and must stay at the hospital. After the accident, immediate hospitalization was necessary. Pro Tip 2/3Seriousness Implied Implies a condition is serious enough to need hospital care, not just a doctor's visit. The infection led to her hospitalization. Pro Tip 3/3Action by Professionals It's a process done by medical professionals, not the patient themselves. The paramedics decided hospitalization was crucial.