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.
extravert - (psychology) a person concerned more with practical realities than with inner thoughts and feelings. extrovert. individual, mortal, person, somebody, someone, soul - a human being; there was too much for one person to do. psychological science, psychology - the science of mental life.