prima facie (pry-mah fay-shah):
Latin for “at first look,” or “on its face,” prima facie refers to what can be presumed after the first disclosure.
prima facie case: A case where, upon first look, the facts themselves prove the case.
Example:
Anthropologists agreed that a relationship exists between race and culture. Therefore, cultural diversity within a given geographical area may be seen as prima facie evidence that the inhabitants were racially diverse.