Clinician (noun)

1. A healthcare professional who diagnoses and treats patients, such as a physician, nurse practitioner, or physician assistant.
2. A therapist or counselor who provides mental health treatment to patients.

Origin:

Derived from the latin word 'clinicus', meaning 'bedridden person, patient'.

Examples:

1. The clinician examined the patient and ordered several tests.
2. The clinician recommended medication and therapy for the patient's depression.
3. The clinician was highly respected by his colleagues and patients.
4. The clinician was skilled at quickly diagnosing and treating his patients.
5. The clinician provided guidance and support to the patient during their therapy sessions.