<computer programming> A special value used in several languages to represent the thing referred to by an uninitialised pointer.

<database design> 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.

(01 Aug 2003)

Nuhn, Anton, Nuhn's gland, nuisance, nuke < Prev | Next > null, nullary, null cell

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1. Something that has no force or meaning.

2. That which has no value; a cipher; zero.

<physics> Null method, a zero method. See Zero.

(01 Mar 1998)

Nuhn's gland, nuisance, nuke, null < Prev | Next > nullary, null cell, null-cell adenoma

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