Dictionary.com
Thesaurus.com
Synonyms

behavior

American  
[bih-heyv-yer] / bɪˈheɪv yər /
especially British, behaviour

noun

  1. manner of behaving or acting.

    Synonyms:
    carriage, bearing, demeanor
  2. Psychology, Animal Behavior.

    1. observable activity in a human or animal.

    2. the aggregate of responses to internal and external stimuli.

    3. a stereotyped, species-specific activity, as a courtship dance or startle reflex.

  3. Often behaviors. a behavior pattern.

  4. the action or reaction of any material under given circumstances.

    the behavior of tin under heat.


behavior Scientific  
/ bĭ-hāvyər /
  1. The actions displayed by an organism in response to its environment.

  2. One of these actions. Certain animal behaviors (such as nest building) result from instinct, while others (such as hunting) must be learned.

  3. The manner in which a physical system, such as a gas, subatomic particle, or ecosystem, acts or functions, especially under specified conditions.


behavior Idioms  

Related Words

Behavior, conduct, deportment, comportment refer to one's actions before or toward others, especially on a particular occasion. Behavior refers to actions usually measured by commonly accepted standards: His behavior at the party was childish. Conduct refers to actions viewed collectively, especially as measured by an ideal standard: Conduct is judged according to principles of ethics. Deportment is behavior related to a code or to an arbitrary standard: Deportment is guided by rules of etiquette. The teacher gave Susan a mark of B in deportment. Comportment is behavior as viewed from the standpoint of one's management of one's own actions: His comportment was marked by a quiet assurance.

Other Word Forms

  • behavioral adjective
  • interbehavior noun

Etymology

Origin of behavior

First recorded in 1375–1425; behave ( def. ) + -ior (on model of havior, variant of havor, from Middle French (h)avoir “a having,” ultimately from Latin habēre “to have”); replacing late Middle English behavoure, behaver; -or 1 ( def. )

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The infrastructure that let previous generations test compatibility through behavior is gone.

From The Wall Street Journal

That is the behavior of “long-term allocation, not speculative excess.”

From MarketWatch

It is a highly engineered system whose behavior under stress is well understood.

From The Wall Street Journal

She tells me about the standards of behavior she expects.

From Literature

Since electrons can have spin up or down, these interactions shape the material's overall behavior.

From Science Daily