Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
U.S. Army, U.S. Marine Corps the noncommissioned officer, usually a master sergeant, serving as chief administrative assistant to the commander of a company, battery, etc.
Used by arrangement with John Wiley & Sons, Inc.
nounThe American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
The senior noncommissioned officer of a U.S. Army or Marine Corps unit, who is equivalent in rank to a master sergeant and performs administrative duties.