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 of malign. 1  1a : evil in nature, influence, or effect : injurious the malign effects of illicit drugsb : malignant, virulent a malign lesion. 2  2 : having or showing intense often vicious ill will : malevolent gave him a malign look.