Copyright Â© by The McGraw-Hill Companies, Inc. McCulloch v. Maryland 1. McCulloch v. Maryland. John Marshall. OVERVIEW. McCulloch v. Maryland established the basis for the expansive authority of the U.S. Congress. The Supreme Court held that the necessary and proper clause of the U.S.
Medical Definition of ambivert. : a person having characteristics of both extrovert and introvert.
Definition of ambivalence. 1  1 : simultaneous and contradictory attitudes or feelings (such as attraction and repulsion) toward an object, person, or action felt ambivalence toward his powerful father ambivalence toward marriage.