What does subspecialties mean?

Subspecialties refer to specific areas of expertise within a broader field or profession, often involving specialized training and knowledge. For example, in medicine, a physician may be a general practitioner but can also pursue a subspecialty like cardiology or endocrinology. This allows professionals to focus on particular aspects of their field, enhancing their skills and the quality of care they provide. Subspecialties can also exist in other domains, such as law, engineering, and education, where practitioners delve deeper into niche areas.