outpatient

noun

1. a patient who receives treatment at a hospital, as in an emergency room or clinic, but is not hospitalized.

noun

1. a nonresident hospital patientCompare inpatient

n.also out-patient, 1715, “person who is treated at a hospital but not admitted,” from out + patient (n.). The adjective is first recorded 1879. n.

1. A patient who is admitted to a hospital or clinic for treatment that does not require an overnight stay.