• Null

    Pronunciation

    • UK IPA: /nÊŒl/
    • US IPA: /nlÌ©/
    • Rhymes: -ÊŒl

    Origin

    From Middle French nul, from Latin nullus.

    Full definition of null

    Noun

    null

    (plural nulls)
    1. A non-existent or empty value or set of values.
    2. Zero quantity of expressions; nothing.
    3. Something that has no force or meaning.
    4. (computing) the ASCII or Unicode character (
    zero value, that indicates no character and is sometimes used as a string terminator.
    1. (computing) the attribute of an entity that has no valid value.Since no date of birth was entered for the patient, his age is null.
    2. One of the beads in nulled work.
    3. (statistics) null hypothesis

    Adjective

    null

    1. Having no validity, "null and void"
    2. insignificant
      • 1924, Marcel Proust, Within a Budding Grove: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.
    3. absent or non-existent
    4. (mathematics) of the null set
    5. (mathematics) of or comprising a value of precisely zero
    6. (genetics, of a mutation) causing a complete loss of gene function, amorphic.

    Derived terms

    Verb

    1. (transitive) to nullify; to annul

    Related terms

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