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HIV Seropositivity definition: Development of neutralizing antibodies in individuals who have been exposed to the human immunodeficiency virus (HIV/HTLV-III/LAV).
Positive Antinuclear Antibody Test definition: Indicates that antibodies directed against nuclear antigens have been detected.
Positive antinuclear antibodies (ANA) definition: Antibodies directed against nuclear antigens; almost invariably found in systemic lupus erythematosus and are frequently found in rheumatoid arthritis, scleroderma, Sjogren's Syndrome and mixed connective tissue disease.
False Positive definition: A test result that shows evidence of a result or condition although it is not actually present.
Non-Negative Integer definition: An integer with a value greater than zero.
node-positive definition: Cancer that has spread to the lymph nodes.
Positive Lymph Node definition: The presence of metastatic cancer cells in a lymph node.
positive chemotaxis definition: The directed movement of a motile cell or organism, or the directed growth of a cell guided by a higher concentration, in a concentration gradient of a specific chemical. [GOC:ai, GOC:isa_complete]
positive regulation of positive chemotaxis definition: Any process that activates or increases the frequency, rate or extent of the directed movement of a motile cell or organism towards a higher concentration in a concentration gradient of a specific chemical. [GOC:ai]
positive gravitaxis definition: The directed movement of a motile cell or organism towards the source of gravity. [GOC:jic]
positive gravitropism definition: The orientation of plant parts towards gravity. [GOC:sm]
positive phototaxis definition: The directed movement of a cell or organism towards a source of light. [GOC:ai]
Positive definition: Involving advantage or good.
Positive Finding definition: An observation confirming something, such as the presence of a disease, condition, or microorganism.
Positive Reinforcer definition: A stimulus that increases the frequency of behavior that leads to its presentation. Things such as food, water, sex, and the opportunity to explore are usually considered as positive reinforcers. Also many dependence-producing drugs, such as cocaine, morphine, phencyclidine, barbiturates, ethanol and some volatile solvents serve as a positive reinforcer.
Positive Infinity definition: A number with a value that is larger than any other positive number.
positive infinity definition: Positive infinity of numbers.
positive aerotaxis definition: The directed movement of a motile cell or organism towards a higher concentration of environmental oxygen. [GOC:dph, GOC:mtg_pamgo_17jul06]
Positive Control definition: A control sample that is known to produce a positive result if the test is working as expected.
Positive Selection definition: The separation of specific cells or cell populations from a heterogeneous mixture. Specifically it refers to the selective retention of a population of desired cells through recognition of cells bearing the specified characteristics.
Ph+/BCR+ definition: Philadelphia chromosome abnormality; t(9;22)(q34;q11) was found; bcr/abl gene rearrangement was found.
Rh Positive Blood Group definition: A blood group indicating the presence on erythrocytes of the Rh D form of the Rhesus antigen.
positiv definition: [1] erfreulich, wünschenswert [2] zustimmen; bejahend; bestätigend [3] Bestätigung eines Befehls, Tests oder einer Bitte [4] Zahl über 0
HIV-positiv definition: [1] vom HI-Virus befallen
Positiv definition: [1] Linguistik: ungesteigerte Form (Grundstufe) der Adjektive und einiger Adverbien [2] über das Negativ gewonnenes, seitenrichtiges, der Natur entsprechendes Bild [3] kleine Tisch- oder Standorgel ohne Pedal für weltliche und kirchliche Musik
discrimination positive definition: [1] Quotenregelung (à vérifier)
positif definition: Qui est réel, solide, par opposition à ce qui est chimérique.
positif definition: Avantages matériels et pécuniaires.
positif definition: Premier degré, par rapport à ''comparatif'' et à ''superlatif''.
positif definition: Ensemble de jeux d’orgues correspondant à un clavier spécial et qui, dans les instruments anciens, est placé habituellement en encorbellement, dans le dos de l’organiste.
séropositif definition: Individu dont le corps a fabriqué des anticorps contre un virus ou un microbe.