behaviour(redirected from being on best behaviour)
Also found in: Dictionary, Thesaurus, Medical, Legal.
a. the aggregate of all the responses made by an organism in any situation
b. a specific response of a certain organism to a specific stimulus or group of stimuli
- the alteration, movement or response of any entity, person or system acting within a particular context.
- (PSYCHOLOGY) the externally observable response of an animal or human organism to an environmental stimulus (see also BEHAVIOURISM).