As nouns the difference between psychotropic and null
is that psychotropic
is (pharmacology) a psychotropic drug or agent while null
is zero, nil; the cardinal number before einn.
As an adjective psychotropic
is (pharmacology) affecting the mind or mental processes.
(pharmacology) Affecting the mind or mental processes.
(pharmacology) A psychotropic drug or agent.
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