without value, effect, consequence, or significance.
being or amounting to nothing; nil; lacking; nonexistent.
being or amounting to zero.
Electronics. a point of minimum signal reception, as on a radio direction finder or other electronic meter.
verb (used with object)
to cancel; make null.
null and void, without legal force or effect; not valid:
This contract is null and void.
without legal force; invalid; (esp in the phrase null and void)
without value or consequence; useless
lacking distinction; characterless: a null expression
nonexistent; amounting to nothing
(physics) involving measurement in which an instrument has a zero reading, as with a Wheatstone bridge
“void of legal force,” 1560s, from Middle French nul, from Latin nullus “not any, none,” from ne- “not, no” (see un-) + illus “any,” diminutive of unus “one” (see one).
Of or relating to a set having no members or to zero magnitude.
A special value used in several languages to represent the thing referred to by an uninitialised pointer. database
A special value that may be stored in some database columns to represent an unknown, missing, not applicable, or undefined value. Nulls are treated completely differently from ordinary values when evaluating SQL expressions and there are several SQL constructs for dealing with nulls.
[nuhl-uh] /ˈnʌl ə/ noun, (in the East Indies) 1. an intermittent watercourse. 2. a gully or ravine. /ˈnʌlɑː/ noun 1. a stream or drain
[nuhl-uh-nuhl-uh] /ˈnʌl əˈnʌl ə/ noun, Australian. 1. an Aboriginal club or cudgel for use in hunting and war. /ˌnʌləˈnʌlə/ noun 1. (Austral) a wooden club used by native Australians
[nuhl-er-bawr, nuhl-ahr-ber] /ˈnʌl ərˌbɔr, nʌlˈɑr bər/ noun 1. a treeless, semiarid area of S Australia, contiguous to the . /ˈnʌləˌbɔː/ noun 1. a vast low plateau of S Australia: extends north from the Great Australian Bight to the Great Victoria Desert; has no surface water or trees. Area: 260 000 sq km (100 000 sq […]
programming A description of an operator or function which takes no arguments, e.g. a function that returns the current time. “Nullary” is part of the unary, binary, ternary sequence, and is more common than its synonym niladic. (2001-02-25)