The use of acceptance tests in subsequent iterations is also known as regression testing. Acceptance testing is a key feature of test-driven development (TDD). In Scrum: Scrum does not specify testing methods, and testing is not a part of the Scrum framework.
Medical Definition of MALIGNANCY. 1. : the quality or state of being malignant.
Definition: Malignant In medicine, the word malignant is a term referring to a condition that is dangerous to health. While it is often used interchangeably with cancer, the term is also used to describe medical conditions outside of cancer than are dangerous or ominous.