What is defined as a group set apart due to its national origin or distinctive cultural patterns?

The concept of an ethnic group is characterized by a shared national origin, cultural traditions, language, and other distinctive cultural patterns that set them apart from other groups within a society. Ethnic groups often have a sense of identity and community that is rooted in common ancestry, often accompanied by a shared history and cultural heritage. This may include unique customs, religious practices, and social norms that shape their group dynamics.

In contrast, a majority group refers to those with more social power and typically more numerical representation in a society. Subcultures are subsets within a larger culture, exhibiting distinct values or behaviors but still largely influenced by the broader culture. An aggregate is simply a collection of individuals who may happen to be together in a specific context but do not share a common identity or cultural characteristics. Thus, the defining features of an ethnic group align precisely with the criteria given in the question.