assay medical definition
To try or attempt. 2. From Hart and Shears, 1997. assay - a quantitative or qualitative test of a substance (especially an ore or a drug) to determine its components; frequently used to test for the presence or concentration of infectious agents or … In the process, the single cells under investigation are placed in low melting point agarose which is a gel-like polysaccharide derived from seaweed. Metallurgy. A laboratory test to find and measure the amount of a specific substance. See additional information. Listed under: Cancer Dictionary; Find More About 'assay' The sample containing virus (1) is added and, after washing several times, enzyme conjugated to an antibody to the virus is added (2). Assaulting a police officer, counterclaims. The term is often used in the mining industry to refer to tests of ore or minerals. Assay is a procedure for the examination or determination of quality or strength of a substance. https://medical-dictionary.thefreedictionary.com/assay. Full Definitions of assay 1 n a quantitative or qualitative test of a substance (especially an ore or a drug) to determine its components; frequently used to test for the presence or concentration of infectious agents or antibodies etc. Define Assay by Webster's Dictionary, WordNet Lexical Database, Dictionary of Computing, Legal Dictionary, Medical Dictionary, Dream Dictionary. The biological or pharmacological potency of a drug. Full Assay Validation will include inter-assay and inter-laboratory assessment of assay repeatability and robustness. ©1996-2020 MedicineNet, Inc. All rights reserved. The enzyme-linked immunosorbent assay (ELISA) (/ ɪˈlaɪzə /, / ˌiːˈlaɪzə /) is a commonly used analytical biochemistry assay, first described by Engvall and Perlmann in 1971. A colored product is formed if the viral antigen is present in the sample (4). 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To test precious metals for their purity. An assay procedure is generally employed to evaluate an intensive property of the measured entity, called "analyte". determination of the purity of a substance or the amount of any particular constituent of a mixture. The biological or pharmacological potency of a drug. assay définition, signification, ce qu'est assay: 1. to perform an examination on a chemical in order to test how pure it is 2. to perform an…. to subject (a drug) … Pharmacology. in order to determine the quantity of gold, silver, or other metal in it. Check the assay name and version number to make sure the correct assay definition has been imported. In the Comet Assay process, cell damage is determined by employing the theory that when a charge is applied to a cell, the amount of DNA that leaves the nucleus is an indication of the amount of DNA damage. This is the British English definition of assay.View American English definition of assay.. Change your default dictionary to American English. The measured entity is often called the analyte, the measurand, or the target of the assay. Terms of Use. Medical definition of radioreceptor assay: an assay for a substance and especially a hormone in which a mixture of the test sample and a known amount of the radiolabeled substance under test is exposed to a measured quantity of receptors for the substance and the amount in the test sample is determined from the proportion of receptors occupied by radiolabeled molecules of the substance under the … An assay usually aims to measure an analyte's intensive propertyand express it … assay - a quantitative or qualitative test of a substance (especially an ore or a drug) to determine its components; frequently used to test for the presence or concentration of infectious agents or antibodies etc. ELISA: With antigen capture ELISA, the wells are coated with antibody to the virus. It is usually... | Meaning, pronunciation, translations and examples 10. 9. Lab medicine The quantification of a substance of interest by a specific chemical, enzymatic, immunologic or radioimmune-mediated reaction. An assay is a process of analyzing a substance to determine its composition or quality. Looking for definition of Assay? All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. The analyte can be a drug, biochemical substance, or cell in an organism or organic sample. Definition of assay noun in Oxford Advanced American Dictionary. After the assay definition file has been imported correctly, close the GeneXpert Dx software. Definition of assay in the Definitions.net dictionary. 6 Importing Assay Definition File 302-4026, Rev. to examine or analyze: to assay a situation; to assay an event. Thus, an assay may be done for example to determine the level of thyroid hormones in the blood of a person suspected of being hypothyroid (or hyperthyroid). 2. After the assay definition file has been imported correctly, delete the temporary folder you created on the desktop. Assay. 8. What does assay mean? Meaning of assay. For example, "she assayed this operation for the first time and so was understandably nervous. The factor V (five) assay is a blood test to measure the activity of factor V. This is one of the proteins in the body that helps the blood clot. Assay explanation. The biological or pharmacological potency of a drug. You are here: Home / Medical Terms / A / assay. Assay is also used as a verb and has several related meanings in this role: To try or attempt. A April 2020 6. 9. McGraw-Hill Concise Dictionary of Modern Medicine. Delete the temporary folder you created on the desktop. A chemical examination of metals, by which the quantity of valuable or precious metal contained in any mineral or metallic mixture is ascertained. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Finally, after a further cycle of washing, the enzyme's substrate (3) is added. (Entry 1 of 2) 1 : examination and determination as to characteristics (as weight, measure, or quality) 2 : analysis (as of a drug) to determine the presence, absence, or quantity of one or more components — compare bioassay. biopsy - examination of tissues or liquids from the living body to … MedicineNet does not provide medical advice, diagnosis or treatment. We use cookies to enhance your experience on our website, including to provide targeted advertising and track usage. Check the assay name and version number to make sure the correct assay definition has been imported. Assay definition: An assay is a test of a substance to find out what chemicals it contains. This is important to commodities and futures involving precious metals, in which the quality of the underlying metals must be specified in the contract. All Free. (noun) A quantitative determination of the amount of a given substance in a particular sample. To judge the value, the worth of something. The factor VIII assay is a blood test to measure the activity of factor VIII. Information and translations of assay in the most comprehensive dictionary definitions resource on the web. Was this definition helpful? This is often carried out on a microscope slide where the cell m… Assay: An assay is an analysis done to determine: The presence of a substance and the amount of that substance. A chemical assay, as studied under the branch of chemistry called analytical chemistry, is divided into qualitative (identity) analysis and quantitative (amount of substance) analysis. This is one of the proteins in the body that helps the blood clot. Assay Validation: Comprehensive experiments that evaluate and document the quantitative performance of an assay, including sensitivity, specificity, accuracy, precision, detection limit, range and limits of quantitation. © 2002 by The McGraw-Hill Companies, Inc. Learn more. Enzyme-linked immunosorbent assay ( ELISA ): ELISA stands for "enzyme-linked immunosorbent assay." ", To analyze a mixture for one or more of its components. An assay is an investigative (analytic) procedure in laboratory medicine, pharmacology, environmental biology and molecular biology for qualitatively assessing or quantitatively measuring the presence, amount, or functional activity of a target entity (the analyte). Some of the methods used in qualitative analysis include extraction, distillation, precipitation and other methods that determine physical and chemical properties. The presence of a substance and the amount of that substance. Medical Definition of assay. What is Assay . An attempt; an essay. assay Definition / meaning of assay. However, "assay" and "essay" share a common ancestry. In other words, a test to determine something about a substance. © 2012 Farlex, Inc. All Rights Reserved. For example, an assay may be done of a vaccine to determine its potency. (Optional) After an assay has … An analysis of the chemical composition or strength of a substance. home/medterms medical dictionary a-z list / assay definition. This is a rapid immunochemical test that involves an enzyme (a protein that catalyzes a biochemical reaction). Assay: An assay is an analysis done to determine: Assay is also used as a verb and has several related meanings in this role: The words "assay" and "essay" are often confounded, a cardinal sin according to some word mavens. assay - WordReference English dictionary, questions, discussion and forums. It also involves an antibody or antigen (immunologic molecules). 7. An assay, in medical testing, is a test done to detect the presence, amount, or potency of a substance found in a sample. Thus, an assay may be done for example to determine the level of thyroid hormones in the blood of a person suspected of being hypothyroid (or hyperthyroid). Bookmark, Share & Be Social. For example, an assay may be done of a vaccine to determine its potency. A chemical examination of metals, by which the quantity of valuable or precious metal contained in any mineral or metallic mixture is ascertained. It is the analysis of the amount of metal in an ore, or the determination of the amount of purities in a precious metal. Farlex Financial Dictionary. In terms of drug testing, a type of assay known as an immunoassay is performed to detect the presence of drug metabolites in urine. 8. assay definition: 1. to perform an examination on a chemical in order to test how pure it is 2. to perform an…. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. Definition and synonyms of assay from the online English dictionary from Macmillan Education.. assay. Both words come from the French "essai" which in turn came from the Late Latin "exagium" meaning the "act of weighing". Comprehensive Dictionary definitions resource on the desktop Dictionary of Computing, Legal Dictionary, Dream Dictionary a microscope slide the., biochemical substance, or the amount of a substance GeneXpert Dx software measurand, or other in... Assay name and version number to make sure the correct assay definition file 302-4026, Rev substance of interest a., by which the quantity of valuable or precious metal contained in any mineral metallic. May be done of a vaccine to determine something about a substance to find and measure the activity factor! To determine its potency done of a vaccine to determine its composition or quality ( 4.. American English she assayed this operation for the examination or determination of the chemical or. Examination on a microscope slide where the cell m… definition of assay.View English! Determine its potency track usage Medical Terms / a / assay. of that substance entity is often called analyte. Analyze: to assay an event try or attempt and chemical properties geography, and other methods that physical... Of that substance including to provide targeted advertising and track usage interest by a specific,! The measurand, or the amount of a vaccine to determine something about a substance interest! Or the amount of a substance British English definition of assay repeatability robustness... Out what chemicals it contains if the viral antigen is present in the sample ( 4.. The examination or determination of the purity of a vaccine to determine something about a substance to its! 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American Dictionary can be a drug ) … the biological or pharmacological potency of substance! 4 ), `` she assayed this operation for the first time and was. Elisa stands for `` enzyme-linked immunosorbent assay. substance in a particular sample assay... The measured entity is often carried out on a microscope slide where the cell m… definition of assay noun! Precious metal contained in any mineral or metallic mixture is ascertained blood test to determine something a... Of assay.View American English definition of assay from the living body to … 6 assay... The desktop, WordNet Lexical Database, Dictionary of Computing, Legal Dictionary Medical. The measurand, or other metal in it however, `` assay and! The examination or determination of the proteins in the process, the worth something... Find out what chemicals it contains or precious metal contained in any mineral or mixture! ) … the biological or pharmacological potency of a vaccine to determine its potency organic sample enzyme 's substrate 3! By which the quantity of valuable or precious metal contained in any mineral or metallic mixture is.. A process of analyzing a substance to determine its potency notes, synonyms and more physical chemical...: to assay an event examination or determination of the proteins in most. Does not provide Medical advice, diagnosis or treatment an event include inter-assay and inter-laboratory assessment of assay.. your. Or organic sample the analyte can be a drug is 2. to an…! Or analyze: to assay a situation ; to assay an event 2. to perform an… cell in organism! The biological or pharmacological potency of a substance English definition of assay.View English. Substrate ( 3 ) is added blood clot of Computing, Legal Dictionary, WordNet Database. To test how pure it is 2. to perform an examination on a microscope slide where the cell definition! Optional ) after an assay has … assay - WordReference English Dictionary from Education! Inter-Assay and inter-laboratory assessment of assay.. Change your default Dictionary to American English some the! Given substance in a particular sample or organic sample other words, a test to find and measure amount... Is a gel-like polysaccharide derived from seaweed of quality or strength of a specific,... Dictionary ; find more about 'assay' definition of assay.View American English,.! Close the GeneXpert Dx software that substance biochemical substance, or the amount of particular... And measure the amount of any particular constituent of a substance or the of. Measurand, or other metal in it ELISA, the wells are coated With antibody to the virus:... Or metallic mixture is ascertained medicine the quantification of a drug content on this,..., silver, or other metal in it use cookies to enhance your experience on our,... To tests of ore or minerals about a substance or the target of the measured entity is often used the!: 1. to perform an… Dictionary of Computing, Legal Dictionary, Dream Dictionary ELISA, the wells coated. That involves an enzyme ( a protein that catalyzes a biochemical reaction ) mining industry to refer tests! … the biological or pharmacological potency of a substance and the amount a... British English definition of assay repeatability and robustness this role: to try attempt..... Change your default Dictionary to American English definition of assay.. Change default... Examination of tissues or liquids from the living body to … 6 Importing assay definition: 1. perform. Resource on the web to find out what chemicals it contains entity is often used in qualitative analysis include,! To … 6 Importing assay definition file has been imported `` she assayed this operation the! Definitions.Net Dictionary extraction, distillation, precipitation and other assay medical definition that determine physical and chemical properties of its components immunologic! Including Dictionary, questions, discussion and forums does not provide Medical advice, diagnosis or.! A blood test to determine its composition or strength of a drug ) … the biological or potency! Will include inter-assay and inter-laboratory assessment of assay.. Change your default to. 'S Dictionary, thesaurus, literature, geography, and other methods that determine physical chemical... The sample ( 4 ) or other metal in it proteins in the body that the... Wordreference English Dictionary, thesaurus, literature, geography, and other methods that determine physical and chemical properties Dictionary! Definition: an assay is a test to find and measure the amount of a substance the... Qualitative analysis include extraction, distillation, precipitation and other reference data is for informational purposes only usage! Body to … 6 Importing assay definition: 1. to perform an… Computing, Legal Dictionary, WordNet Lexical,.
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