type A

adjective
Updated on: 20 Apr 2018

Definition of type A

: relating to, characteristic of, having, or being a personality that is marked by impatience, aggressiveness, and competitiveness and that is held to be associated with increased risk of cardiovascular disease
  • type A behavior

Recent Examples of type a from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'type A.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of type a

1970

in the meaning defined above

See Words from the same year
NEW! Time Traveler

Medical Dictionary

1

type A

adjective

medical Definition of type A

: relating to, characteristic of, having, or being a personality that is marked by impatience, aggressiveness, and competitiveness and that has been implicated by some studies as a factor increasing the risk of cardiovascular disease
  • type A behavior

2

type A

noun

medical Definition of type A

: an individual with a type A personality

Seen and Heard

What made you want to look up type A? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

a large number

Get Word of the Day daily email!

Test Your Vocabulary

Odd Habits and Quirks Quiz

  • image1926873504
  • Which of the following best describes an easily irritated person?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Dictionary Devil

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!