Type A Hear it!

Type A definition

☆ Type A

a personality type characterized by tenseness, drive, aggression, etc., traits thought to make one more susceptible to heart attacks

Etymology: first used (c. 1974) by M. Friedman & R. Rosenman, U.S. physicians

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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