Type A Definition

adjective
Of or relating to a personality or behavior pattern that is marked by tenseness, impatience, and aggressiveness and is thought to be associated with an increased risk factor for heart disease.
American Heritage Medicine
noun
A person who has this personality or exhibits this behavior pattern.
American Heritage Medicine
A personality type characterized by drive, impatience, aggression, etc., traits thought to make one more susceptible to stress.
Webster's New World
Synonyms:
  • group A
  • a

Other Word Forms of Type A

Noun

Singular:
type A
Plural:
type As

Type A Sentence Examples

  • He's one of these type A personality guys who's always wound up tighter than a spring—wears whatever face suits the crowd.

  • He's one of these type A personality guys who's always wound up tighter than a spring—wears whatever face suits the crowd.

  • Where do you expect to find type A spermatogonia, primary and secondary spermatocytes, spermatids and mature spermatozoa.

  • Patients with type A NPD usually die within the first 18 months of life.

  • Type-A category used to define personality, usually based on a theory of some kind.

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