The way a living creature behaves or acts.
* 2014 , A teacher, "
- She can't stop the strange behaviour because she has OCD (obsessive-compulsive disorder).
Choosing a primary school: a teacher's guide for parents", The Guardian , 23 September 2014:
The way a device or system operates.
- Teachers will probably be on their best behaviour for your visit – but don't be upset if they don't even notice you; they've got enough going on.
* Adjectives often applied to "behaviour" include: human, animal, physical, chemical, mechanical, electrical, organizational, corporate, social, collective, parental, interpersonal, sexual, criminal, appropriate, inappropriate, correct, incorrect, right, wrong, good, bad, acceptable, unacceptable, poor, ethical, unethical, moral, immoral, responsible, irresponsible, normal, odd, deviant, abnormal, violent, abusive, aggressive, offensive, defensive, rude, stupid, undesirable, verbal, nonverbal, learned, professional, unprofessional, adaptive, compulsive, questionable, assertive, disgusting, self-destructive.
* human behaviour
A non-existent or empty value or set of values.
Zero]] quantity of [[expression, expressions; nothing.
Something that has no force or meaning.
(computing) the ASCII or Unicode character (), represented by a zero value, that indicates no character and is sometimes used as a string terminator.
(computing) the attribute of an entity that has no valid value.
- (Francis Bacon)
One of the beads in nulled work.
(statistics) null hypothesis
- Since no date of birth was entered for the patient, his age is null .
Having no validity, "null and void"
* 1924 , Marcel Proust, Within a Budding Grove :
absent or non-existent
(mathematics) of the null set
(mathematics) of or comprising a value of precisely zero
(genetics, of a mutation) causing a complete loss of gene function, amorphic.
- In proportion as we descend the social scale our snobbishness fastens on to mere nothings which are perhaps no more null than the distinctions observed by the aristocracy, but, being more obscure, more peculiar to the individual, take us more by surprise.
to nullify; to annul