First Known Use: circa 1567
Dictionary
1null
adjective \ˈnəl\
law : having no legal power
Full Definition of NULL
1
: having no legal or binding force : invalid
2
: amounting to nothing : nil
3
: having no value : insignificant
4
a : having no elements <null set> b : having zero as a limit <null sequence> c of a matrix : having all elements equal to zero
5
a : indicating usually by a zero reading on a scale when a given quantity (as current or voltage) is zero or when two quantities are equal —used of an instrument b : being or relating to a method of measurement in which an unknown quantity (as of electric current) is compared with a known quantity of the same kind and found equal by a null detector
6
: of, being, or relating to zero
7
: zero 1c
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Origin of NULL
Related to NULL
- Synonyms
- bad, inoperative, invalid, nonbinding, nonvalid, nugatory, null and void, void
2null
noun
Definition of NULL
1
: zero 3a(1)
2
a : a condition of a radio receiver when minimum or zero signal is received b : a minimum or zero value of an electric current or of a radio signal
First Known Use of NULL
1605
3null
verb
Definition of NULL
transitive verb
: to make null
First Known Use of NULL
1643
NULL[1] Defined for Kids
null
adjective \ˈnəl\
Definition of NULL for Kids
: having no legal force : not binding <The law was declared null and void.>
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