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Meaning of Type A

Type A

Pronunciation: [key]
— Psychol. Psychol.
  1. of or pertaining to a pattern of behavior characterized by competitiveness, a sense of urgency, impatience, perfectionism, and assertiveness, and possibly associated with an increased risk of heart disease.
  2. of or pertaining to a person who exhibits Type A behavior.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.