con ‧ trib ‧ u ‧ tor AC /kənˈtrɪbjətə, kənˈtrɪbjʊtə $ -ər/ BrE AmE noun [countable]
[ Word Family: noun : ↑ contribution , ↑ contributor ; verb : ↑ contribute ; adjective : ↑ contributory ]
1 . someone who gives money, help, ideas etc to something that a lot of other people are also involved in:
campaign contributors
contributor to
Dr Win was a major contributor to the research.
2 . someone who writes a story, song, speech etc that forms part of a larger work such as a newspaper, book, broadcast, recording etc
contributor to
a regular contributor to ‘Time’ magazine
3 . formal someone or something that helps to cause something to happen
contributor to
Cars are still one of the principal contributors to air pollution.