A polyclinic offers many types of medical services, not just one specialty. At the polyclinic, you can see a dentist, a dermatologist, and a cardiologist all in one place.
Pro Tip 2/3
Not a Hospital
A polyclinic is smaller than a hospital and usually doesn't handle emergencies. For your regular health check-up, you should go to a polyclinic, not the emergency room.
Pro Tip 3/3
Appointment Basis
Polyclinics often work by appointments, so it's best to book in advance. I have a polyclinic appointment next Thursday for my vaccination.