Longman Dictionary of Contemporary English
chain store
noun
EXAMPLES FROM CORPUS
▪ Separate from these groups was the large mass of youth whose clothes were chain store versions of traditional styles.
▪ The chain store piloted a 13-week part-time secondment programme in which five employees spent hours working with five voluntary organisations.
▪ This desire in the commercial sector to create a solid, established identity reflects the rise of the chain store.
Wiktionary
chain store
n. A retail outlet that is one of a group of similar establishments having common format, contents, ownership and management.
WordNet
chain store
n. one of a chain of retail stores under the same management and selling the same merchandise
Wikipedia
Chain store
Chain store(s) or retail chain are retail outlets that share a brand and central management, and usually have standardized business methods and practices. In retail, dining, and many service categories, chain businesses have come to dominate the market in many parts of the world. A franchise retail establishment is one form of chain store. In 2004, the world's largest retail chain, Wal-Mart, became the world's largest corporation based on gross sales.