noun
specialist outpatient department; specialty clinic
Refers to a hospital department that provides outpatient care in a specific medical field, such as cardiology or dermatology.
この病院には糖尿病の専門外来があります。
This hospital has a specialist outpatient department for diabetes.
外来 is a general term for outpatient services, while 専門外来 specifies a department focused on a particular medical specialty.
Compound of 専門 (せんもん, 'specialty') and 外来 (がいらい, 'outpatient'). The term is a straightforward modern medical compound.