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null

(nul)
1. insignificant; having no consequence or value.
2. absent or nonexistent.
3. zero; nothing.

null

Molecular biology
See Null mutation.

Statistics
Completely absent; a set with no members or of zero magnitude. If a field has a value of null, it means that the value is unknown. A null value is not the same as a value of zero, and the difference can be crucial. For example, when calculating the average value of a field among many records where one row contains a zero, the zero gets factored into the average; if the field has a null value, it does not get factored in to the average.

null

an absence of information, as contrasted with zero or blank or nil, about a value.

null cell
called also null lymphocyte; see null cell.
null hypothesis
a statistical hypothesis which states that one variable has no association with another variable, or set of variables. That is, the observed results can be explained by chance alone.
null lymphocyte
see null cell.
References in periodicals archive ?
Also speaking was the Chairperson of the NUL Council, Mr.
Again, this is influenced by the sociolinguistic background of NUL students.
Jones kept amongst the files of the NUL a statement entitled, "The Octopus and Its Tentacles.
Originally founded in 1938 as a marine construction company, the Jan de Nul Group (www.
Le Hassania d'Agadir vainqueur AaAaAeA domicile face AaAaAeA Olympic de Safi 1 but AaAaAeA 0, grAaAaAeAcce AaAaAeA une rAaAaAeA@alisation inscrite par Jalal Daoudi (sur marquAaAaAeA@ AaAaAeA 20 minutes de la fin du match), a mis fin AaAaAeA une sAaAaAeA@ matches nuls respectivement contre le KACM (1-1), l'IRT et l'AS FAR (2-2) ainsi qu'une dAaAaAeA@faite devant le Raja (2-1
NUL POINTS: Gemma Abbey and Chris Cromby as Jemini sing Cry Baby in the Eurovision song contest
Business owners who are interested in participating in the program should contact Marvin Owens, NUL vice president of Economic Development and Housing, at 212-558-5300.
I'm excited to welcome the NUL Annual Conference to the City of Philadelphia for 2013," Mayor Nutter said.
L'Olympique de Marseille a arrache le nul sur le fil a Bordeaux (1-1) dimanche soir, en cloture de la 13eme journee de Ligue 1, mais n'a toujours pas gagne en Gironde depuis 40 ans.
En revanche, le Raja de Casablanca a renverse, avec l'art et la maniere, le nul vierge qu'il a concede sur sa pelouse, en faisant trembler les filets de Dcheira a quatre reprises (4-1).
Le president du Paradou AC, Kheireddine Zetchi, s'est dit satisfait du nul ramene par son equipe de son deplacement vendredi a Boufarik (0-0), lui permettant de rester en tete du classement de la Ligue 2 algerienne de football et garder son invincibilite apres huit journees.
Contracts from Jan De Nul Group is gained by Keppel Offshore & Marine (Keppel O&M)'s wholly owned subsidiary Keppel Singmarine to build three trailing suction hopper dredgers (TSHDs) with an estimated value US$74 million (S$100 million).