mastery[mas′tər ē, mäs′-]
mastery definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
mastery definition by American Heritage Dictionary
noun pl. mas·ter·ies
- Possession of consummate skill.
- The status of master or ruler; control: mastery of the seas.
- Full command of a subject of study: Her mastery of economic theory impressed the professors.