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assay

Babylon English English dictionary

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assay
v. test, examine; try; attempt; estimate
 
n. testing of an ore or alloy to determine the amount of metal contained in it

Wikipedia English The Free Encyclopedia

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Assay
An assay is an investigative (analytic) procedure in laboratory medicinepharmacologyenvironmental biology and molecular biology for qualitatively assessing or quantitatively measuring the presence or amount or the functional activity of a target entity (the analyte). The analyte can be a drug or biochemical substance or a cell in an organism or organic sample. The measured entity is generally called the analyte, or the measurand or the target of the assay. The assay usually aims to measure an intensive property of the analyte and express it in the relevant measurement unit (e.g. molaritydensity, functional activity in enzyme international units, degree of some effect in comparison to a standard, etc.).

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WordNet 2.0 Dictionary

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assay

Noun
1. an appraisal of the state of affairs; "they made an assay of the contents"; "a check on its dependability under stress"
(synonym) check
(hypernym) appraisal, assessment
(hyponym) countercheck, double check
2. a substance that is undergoing an analysis of its components
(hypernym) substance, matter
3. a written report of the results of an analysis of the composition of some substance
(hypernym) report, study, written report
4. 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.
(hypernym) test, trial, run
(hyponym) enzyme-linked-immunosorbent serologic assay, ELISA

Verb
1. analyze (chemical substances)
(hypernym) analyze, analyse, study, examine, canvass, canvas
(hyponym) bioassay
2. make an effort or attempt; "He tried to shake off his fears"; "The infant had essayed a few wobbly steps"; "The police attempted to stop the thief"; "He sought to improve himself"; "She always seeks to do good in the world"
(synonym) try, seek, attempt, essay
(hypernym) act, move
(hyponym) take a dare, pick up the gauntlet


Webster's Revised Unabridged Dictionary (1913)

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Assay
(v.)
To try; to attempt; to apply.
  
 
(v.)
To try tasting, as food or drink.
  
 
(v.)
To subject, as an ore, alloy, or other metallic compound, to chemical or metallurgical examination, in order to determine the amount of a particular metal contained in it, or to ascertain its composition.
  
 
(v.)
To affect.
  
 
(v. i.)
To attempt, try, or endeavor.
  
 
(n.)
Trial; attempt; essay.
  
 
(n.)
Trial by danger or by affliction; adventure; risk; hardship; state of being tried.
  
 
(n.)
The alloy or metal to be assayed.
  
 
(n.)
The act or process of ascertaining the proportion of a particular metal in an ore or alloy; especially, the determination of the proportion of gold or silver in bullion or coin.
  
 
(n.)
Tested purity or value.
  
 
(n.)
Examination and determination; test; as, an assay of bread or wine.
  

Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter. About

Dictionary of Medicine

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assay
noun
testing of a substance
see also BIOASSAY, IMMUNOASSAY



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