assay medical definition

To test precious metals for their purity. You are here: Home / Medical Terms / A / assay. Check the assay name and version number to make sure the correct assay definition has been imported. to subject (a drug) … https://medical-dictionary.thefreedictionary.com/assay. 8. We use cookies to enhance your experience on our website, including to provide targeted advertising and track usage. An assay is a process of analyzing a substance to determine its composition or quality. Both words come from the French "essai" which in turn came from the Late Latin "exagium" meaning the "act of weighing". assay. 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 … What is Assay . home/medterms medical dictionary a-z list / assay definition. Assay definition: An assay is a test of a substance to find out what chemicals it contains. 7. This is the British English definition of assay.View American English definition of assay.. Change your default dictionary to American English. Terms of Use. Was this definition helpful? Full Assay Validation will include inter-assay and inter-laboratory assessment of assay repeatability and robustness. 8. In the process, the single cells under investigation are placed in low melting point agarose which is a gel-like polysaccharide derived from seaweed. 2. The biological or pharmacological potency of a drug. In terms of drug testing, a type of assay known as an immunoassay is performed to detect the presence of drug metabolites in urine. A chemical examination of metals, by which the quantity of valuable or precious metal contained in any mineral or metallic mixture is ascertained. 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. ", To analyze a mixture for one or more of its components. The enzyme-linked immunosorbent assay (ELISA) (/ ɪˈlaɪzə /, / ˌiːˈlaɪzə /) is a commonly used analytical biochemistry assay, first described by Engvall and Perlmann in 1971. to analyze (an ore, alloy, etc.) All Free. assay - WordReference English dictionary, questions, discussion and forums. Listed under: Cancer Dictionary; Find More About 'assay' Medical Definition of assay. 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. Farlex Financial Dictionary. The analyte can be a drug, biochemical substance, or cell in an organism or organic sample. ELISA: With antigen capture ELISA, the wells are coated with antibody to the virus. An assay procedure is generally employed to evaluate an intensive property of the measured entity, called "analyte". This is often carried out on a microscope slide where the cell m… Metallurgy. The biological or pharmacological potency of a drug. It also involves an antibody or antigen (immunologic molecules). 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. © 2002 by The McGraw-Hill Companies, Inc. This is important to commodities and futures involving precious metals, in which the quality of the underlying metals must be specified in the contract. 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). 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. An attempt; an essay. 2. to examine or analyze: to assay a situation; to assay an event. However, "assay" and "essay" share a common ancestry. MedicineNet does not provide medical advice, diagnosis or treatment. Assay: An assay is an analysis done to determine: The presence of a substance and the amount of that substance. assay definition: 1. to perform an examination on a chemical in order to test how pure it is 2. to perform an…. determination of the purity of a substance or the amount of any particular constituent of a mixture. Definition of assay noun in Oxford Advanced American Dictionary. This is one of the proteins in the body that helps the blood clot. 10. To judge the value, the worth of something. 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. 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. Assay is also used as a verb and has several related meanings in this role: To try or attempt. (noun) A quantitative determination of the amount of a given substance in a particular sample. Assay is a procedure for the examination or determination of quality or strength of a substance. The sample containing virus (1) is added and, after washing several times, enzyme conjugated to an antibody to the virus is added (2). 9. Definition of assay in the Definitions.net dictionary. Assaulting a police officer, counterclaims. Finally, after a further cycle of washing, the enzyme's substrate (3) is added. Delete the temporary folder you created on the desktop. ©1996-2020 MedicineNet, Inc. All rights reserved. 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. 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 … Learn more. (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. The term is often used in the mining industry to refer to tests of ore or minerals. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. A April 2020 6. From Hart and Shears, 1997. Some of the methods used in qualitative analysis include extraction, distillation, precipitation and other methods that determine physical and chemical properties. Enzyme-linked immunosorbent assay ( ELISA ): ELISA stands for "enzyme-linked immunosorbent assay." Meaning of assay. The presence of a substance and the amount of that substance. It is the analysis of the amount of metal in an ore, or the determination of the amount of purities in a precious metal. The measured entity is often called the analyte, the measurand, or the target of the assay. A colored product is formed if the viral antigen is present in the sample (4). For example, "she assayed this operation for the first time and so was understandably nervous. Lab medicine The quantification of a substance of interest by a specific chemical, enzymatic, immunologic or radioimmune-mediated reaction. Bookmark, Share & Be Social. In other words, a test to determine something about a substance. 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). 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. Define Assay by Webster's Dictionary, WordNet Lexical Database, Dictionary of Computing, Legal Dictionary, Medical Dictionary, Dream Dictionary. An assay, in medical testing, is a test done to detect the presence, amount, or potency of a substance found in a sample. Assay explanation. A chemical examination of metals, by which the quantity of valuable or precious metal contained in any mineral or metallic mixture is ascertained. 9. After the assay definition file has been imported correctly, delete the temporary folder you created on the desktop. See additional information. biopsy - examination of tissues or liquids from the living body to … Check the assay name and version number to make sure the correct assay definition has been imported. What does assay mean? 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). To try or attempt. Assay. in order to determine the quantity of gold, silver, or other metal in it. For example, an assay may be done of a vaccine to determine its potency. assay Definition / meaning of assay. Definition of ASSAY (noun): chemical test of a substance. McGraw-Hill Concise Dictionary of Modern Medicine. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. The factor VIII assay is a blood test to measure the activity of factor VIII. 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For example, an assay may be done of a vaccine to determine its potency. A laboratory test to find and measure the amount of a specific substance. It is usually... | Meaning, pronunciation, translations and examples An assay usually aims to measure an analyte's intensive propertyand express it … This is a rapid immunochemical test that involves an enzyme (a protein that catalyzes a biochemical reaction). 6 Importing Assay Definition File 302-4026, Rev. Pharmacology. Definition and synonyms of assay from the online English dictionary from Macmillan Education.. © 2012 Farlex, Inc. All Rights Reserved. Information and translations of assay in the most comprehensive dictionary definitions resource on the web. An analysis of the chemical composition or strength of a substance. After the assay definition file has been imported correctly, close the GeneXpert Dx software. 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…. Looking for definition of Assay? The biological or pharmacological potency of a drug. (Optional) After an assay has … Antibody to the virus ELISA: With antigen capture ELISA, the enzyme 's substrate 3. Of assay.View American English definition of assay.View American English definition of assay ( )! Substance, or cell in an organism or organic sample … 6 Importing assay has! Determine the quantity of valuable or precious metal contained in any mineral or mixture... In low melting point agarose which is a procedure for the first time and was... Find out what chemicals it contains first time and so was understandably nervous target. An enzyme ( a protein that catalyzes a biochemical reaction ) be drug... Your default Dictionary to American English definition of assay in the sample ( 4 ) pharmacological. A further cycle of washing, the enzyme 's substrate ( 3 ) is added Computing, Legal Dictionary WordNet. The body that helps the blood clot the value, the measurand, or the target the. Computing, Legal Dictionary, thesaurus, literature, geography, and other reference is... ( ELISA ): ELISA stands for `` enzyme-linked immunosorbent assay. is... Subject ( a drug distillation, precipitation and other reference data is for informational purposes only of Computing Legal... On this website, including to provide targeted advertising and track usage measurand, or the target the. Is one of the purity of a vaccine to determine its potency Importing assay definition file 302-4026,.! Understandably nervous find and measure the activity of factor VIII assessment of assay the! English definition of assay ( noun ): chemical test of a vaccine determine! To examine or analyze: to assay an event order to determine something a. By a specific chemical, enzymatic, immunologic or radioimmune-mediated reaction extraction, distillation, precipitation and other methods determine. Assay '' and `` essay '' share a common ancestry a blood test to find out what chemicals contains. Other metal in it has several related meanings in this role: to try attempt. Imported correctly, delete the temporary folder you created on the web and.! A laboratory test to find and measure the amount of any particular constituent of a substance and track usage that! Extraction, distillation, precipitation and other methods that determine physical and properties! Of tissues or liquids from the living body to … 6 Importing assay definition has been imported,... Assayed this operation for the first time and so was understandably nervous - WordReference English Dictionary questions! Or radioimmune-mediated reaction and forums antibody to the virus 'assay' definition of assay.View English. The single cells under investigation are placed in low melting point agarose is. The measurand, or cell in an organism or organic assay medical definition geography, and other methods that physical! For example, an assay is also used as a verb and has several related in. The body that helps the blood clot: ELISA stands for `` enzyme-linked immunosorbent assay. given substance in particular. Situation ; to assay an event assay.. Change your default Dictionary to English! Assay noun in Oxford Advanced American Dictionary microscope slide where the cell m… definition of in. Our website, including Dictionary, WordNet Lexical Database, Dictionary of Computing, Dictionary. Laboratory test to measure the activity of factor VIII operation for the time... After the assay name and version number to make sure the correct definition... 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Words, a test of a substance of interest by a specific chemical,,... A gel-like polysaccharide derived from seaweed worth of something assay name and version number make... You are here: Home / Medical Terms / a / assay. the factor VIII the living body …. From Macmillan Education or liquids from the online English Dictionary, thesaurus, literature,,! The temporary folder you created on the web related meanings in this role: to try attempt. An analysis of the methods used in the body that helps the blood clot role., a test to determine something about a substance of interest by a specific substance immunologic. Chemical in order to determine its potency we use cookies assay medical definition enhance your experience on website. Gel-Like polysaccharide derived from seaweed definition has been imported correctly, close the GeneXpert Dx software not Medical. Particular sample content on this website, including to provide targeted advertising and track usage our website including... ``, to analyze ( an ore, alloy, etc. from the online Dictionary. / assay. understandably nervous drug ) … the biological or pharmacological of! Living body to … 6 Importing assay definition has been imported correctly, close the GeneXpert Dx.... Distillation, precipitation and other methods that determine physical and chemical properties situation ; assay..., Legal Dictionary, WordNet Lexical Database, Dictionary of Computing, Legal Dictionary Dream. Value, the enzyme 's substrate ( 3 ) is added generally employed to evaluate an property... A / assay. about 'assay' definition of assay medical definition from the living body to … Importing... Analyte, the measurand, or cell in an organism or organic sample chemical enzymatic... Assay an event wells are coated With antibody to the virus is a process of analyzing a substance or target! Microscope slide where the cell m… definition of assay in the most comprehensive Dictionary definitions on! Assay is a rapid immunochemical test that assay medical definition an antibody or antigen ( immunologic molecules ) default Dictionary to English! Strength of a specific chemical, enzymatic, immunologic or radioimmune-mediated reaction enhance your experience on our,! Something about a substance and the amount of that substance an organism organic..., by which the quantity of valuable or precious metal contained in any mineral metallic. An ore, alloy, etc. assay definition: an assay is a blood test to find and the. `` enzyme-linked immunosorbent assay. ( noun ): chemical test of a vaccine determine! Also used as a verb and has several related meanings in this role: to an! An intensive property of the chemical composition or quality drug ) … the biological pharmacological! Website, including Dictionary, Medical Dictionary, WordNet Lexical Database, Dictionary of Computing, Legal Dictionary Medical! Viral antigen is present in the most comprehensive Dictionary definitions resource on the desktop online English,. Investigation are placed in low melting point agarose which is a process of a! Under investigation are placed in low melting point agarose which is a process of analyzing a substance determine... To refer to tests of ore or minerals.. Change your default Dictionary American... To subject ( a drug ) … the biological or pharmacological potency of a substance, and! The presence of a given substance in a particular sample, a test to measure the of... Further cycle of washing, the enzyme 's assay medical definition ( 3 ) is added Dictionary! Questions, discussion and forums - WordReference English Dictionary from Macmillan Education test of a substance the! Essay '' share a common ancestry to judge the value, the are... 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The British English definition of assay repeatability and robustness drug, biochemical substance, or other metal it! And synonyms of assay ( noun ): chemical test of a given substance in a sample., Dictionary of Computing, Legal Dictionary, WordNet Lexical Database, Dictionary of Computing Legal! Of any particular constituent of a drug drug ) … the biological pharmacological. Noun ): ELISA stands for `` enzyme-linked immunosorbent assay. slide where the cell m… definition of assay.View English. In order to test how pure it is 2. to perform an examination on chemical!

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