From Longman Dictionary of Contemporary Englishbusiness cardˈbusiness ˌcard noun [countable] 
BDa card that shows a business person’s name, position, company, address etc
BDa card that shows a business person’s name, position, company, address etcExamples from the Corpus
business card• A storefront sign or a business card are some of the most powerful branding devices around.• Says so right on his business card.• If your business card says business development, what should you do all day? 