- The definition of null is a zero value, or is something that is no longer valid or relevant.
- When you have zero of something, this is an example of null.
- When a contract is voided, this is an example of a null contract.
null definition by Webster's New World
- without legal force; not binding; invalid: usually in the phrase
- amounting to naught; nil
- of no value, effect, or consequence; insignificant
- Math. designating, of, or being zero, as
- having all zero elements: null matrix
- having a limit of zero: null sequence
- having no members whatsoever: null set
Origin: Middle French nul ; from Classical Latin nullus, not any, none ; from Old Latin an unverified form n(e) oin(o)los, not a one ; from ne, not (see no) plush diminutive of oinos ; from Indo-European an unverified form oinos: see one
null definition by American Heritage Dictionary
- Having no legal force; invalid: render a contract null and void.
- Of no consequence, effect, or value; insignificant.
- Amounting to nothing; absent or nonexistent: a null result.
- Mathematics Of or relating to a set having no members or to zero magnitude.
- Zero; nothing.
- An instrument reading of zero.
Origin: French nul, from Old French, from Latin nūllus; see ne in Indo-European roots.
null - Computer Definition
A character that is all 0 bits. Also written as "NUL," it is the first character in the ASCII and EBCDIC data codes. In hex, it displays and prints as 00; in decimal, it may appear as a single zero in a chart of codes, but displays and prints as a blank space. Nulls are naturally found in binary numbers when a byte contains all zeros, and they are used to pad fields (see padding). A null may function as a delimiter; for example, in C/C++, a null character is inserted at the end of a character string to mark the end of the text.
null - Science Definition