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assay

assay

8 7.7
A test that finds what a substance contains or how pure it is
  • noun
  • /əˈseɪ/
  • Specialized
translation icon : ensayo
  • Further, we assessed maternal smoking with a sensitive assay for cotinine, a well-validated biomarker for tobacco smoke.
  • perform an assay
  • use an assay
  • screening assay

But is this what is this assay giving us a readout on just unfolding.

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Examples

  • As such, the myeloperoxidase assay measures the activity of myeloperoxidase, which is an enzyme unique to neutrophils.

    Academic text (2015)
  • The laboratory conducted an assay to determine the mineral content of the rock sample.

  • The assay office says there's gold traces.

  • This is a pulse chase assay of intestinal cells.

  • Mercury concentrations were measured by a different assay than the other metals.

    Academic text (2012)
  • Well, we ran the assay twice and the levels of C24 and C26 read normal.

  • Lack of detection could be explained by different assay sensitivities or by the selection of samples tested.

    Academic text (2012)
  • Their main evidence for this assurance was a 48-hour mutagenicity assay on soil samples near the site.

    Academic text (1993)
  • We tested for this possibility by performing a chemotaxis assay on wild-type animals toward or away from ethanol.

    Academic text (2017)
  • We monitored the performance of the assays with standard quality control procedures, including analysis of blinded pooled samples.

    Academic text (2012)

Synonyms

test
vsassay
1.0

An activity to check how well something works

applies specifically to scientific analysis of substance content or quality
testing
vsassay
504 2.5

A process of checking how well something works or how safe it is

is more specific, aiming to determine substance content or quality in scientific contexts
chemical analysis
vsassay
  • Specialized
6 3.5

To test a substance to find what elements or compounds are in it

focuses on content or quality broadly not limited to chemical composition identification
ELISA
vsassay
  • Specialized
5 5.9

A lab test that uses a chemical reaction and color change to show if a sample has antibodies or germs

identifies substance content by various methods, not only enzyme color tests
immunoassay
vsassay
  • Specialized
1 7.2

A lab test that uses antibodies to find or measure proteins in samples like blood

measures substance content or quality generally not only via antibody reactions
immunochemical assay
vsassay
  • Specialized
6.6

A lab test that uses antibodies to find or measure proteins in body samples

checks content or quality broadly rather than only antibody reactions
diagnostic assay
vsassay
  • Specialized
6.0

A lab test that finds or confirms a disease in a person

evaluates substance content or quality across scientific fields rather than diagnosing disease
quantitative chemical analysis
vsassay
  • Specialized
4.9

A chemical test that measures how much of each substance is in a sample

finds content or quality in general, not only precise chemical quantities
bio-assay
vsassay
  • Specialized
7.3

A scientific test that measures how a substance affects living things compared to a known standard

assesses content or quality generally rather than biological effect or activity
to bioassay
vsassay
  • Specialized
8.6

To test how a substance affects living things

measures content or quality in general not specifically biological potency

Compounds

bio-assay
  • Specialized
7.3

A scientific test that measures how a substance affects living things compared to a known standard

diagnostic assay
  • Specialized
6.0

A lab test that finds or confirms a disease in a person

A lab test that uses an enzyme to find antibodies or germs in blood

9.9

A small stamped sign on a gold or silver item that shows its purity and maker

immunochemical assay
  • Specialized
6.6

A lab test that uses antibodies to find or measure proteins in body samples

How Detailed

characterization
  • US
64 4.4
assay
  • Specialized
8 7.7
analysis
3.4
screening
23 3.9

Surface Forms

assay singular
assays plural

Etymology

Assay comes from an old French word meaning 'to try' or 'test', the same idea behind the English word essay, which is a short 'attempt'. So an assay is a careful 'trial' or test used to find what a substance contains or how pure it is.