assay(redirected from fetal fibronectin assay)
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an analysis of a substance, esp. of an ore or drug: His find required an assay to determine its value.
Not to be confused with:
essay – try; subject to a test; a short literary composition: She wrote an essay for her final exam.
a. Qualitative or quantitative analysis of a metal or ore to determine its components.
b. A substance to be so analyzed.
c. The result of such an analysis.
2. A bioassay.
3. An analysis or examination.
4. Archaic An attempt; an essay.
v. (ă-sā′, ăs′ā′) as·sayed, as·say·ing, as·says
a. To subject (a metal, for example) to chemical analysis so as to determine the strength or quality of its components.
b. To bioassay.
2. To examine by trial or experiment; put to a test: assay one's ability to speak Chinese.
3. To evaluate; assess: assayed the situation before taking action.
4. To attempt; try: "Singers of every race and nationality have by now assayed the role" (Barry Singer).
To be shown by analysis to contain a certain proportion of usually precious metal.
[Middle English, from Old French essai, assai; see essay.]
1. (Chemistry) to subject (a substance, such as silver or gold) to chemical analysis, as in the determination of the amount of impurity
2. (tr) to attempt (something or to do something)
3. (tr; may take a clause as object) to test, analyse, or evaluate: to assay the significance of early childhood experience.
a. an analysis, esp a determination of the amount of metal in an ore or the amounts of impurities in a precious metal
b. (as modifier): an assay office.
5. (Elements & Compounds) a substance undergoing an analysis
6. (Chemistry) a written report on the results of an analysis
7. a test
8. archaic an attempt
[C14: from Old Northern French assai; see essay]
as•say(v. æˈseɪ; n. ˈæs eɪ, æˈseɪ)
1. to examine or analyze: to assay a situation.
2. to analyze (an ore, alloy, etc.) to determine the content of gold, silver, or other metal.
3. to analyze (a drug) to determine potency or composition.
4. to test or evaluate: to assay one's strength.
5. to attempt; try; essay: to assay a dance step.n.
6. an analysis of the composition or strength of a substance, esp. a determination of the amount of metal in an ore, alloy, etc.
7. a substance undergoing analysis or trial.
8. a detailed report of the findings in assaying a substance.
9. Archaic. examination; trial; attempt.
[1250–1300; Middle English < Middle French; variant of essay]
Past participle: assayed
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|Noun||1.||assay - an appraisal of the state of affairs; "they made an assay of the contents"; "a check on its dependability under stress"|
Apgar score - an assessment of the physical condition of a newborn infant; involves heart rate and muscle tone and respiratory effort and color and reflex responsiveness
paternity test - a test based on blood groups to determine whether a particular man could be the biological father of a particular child; negative results prove he was not the father but positive results show only that he could be
stress test - a test measuring how a system functions when subjected to controlled amounts of stress
|2.||assay - a substance that is undergoing an analysis of its components|
substance - a particular kind or species of matter with uniform properties; "shigella is one of the most toxic substances known to man"
|3.||assay - a written report of the results of an analysis of the composition of some substance|
|4.||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.|
trial, run, test - the act of testing something; "in the experimental trials the amount of carbon was measured separately"; "he called each flip of the coin a new trial"
ELISA, enzyme-linked-immunosorbent serologic assay - an assay that relies on an enzymatic conversion reaction and is used to detect the presence of specific substances (such as enzymes or viruses or antibodies or bacteria)
immunohistochemistry - an assay that shows specific antigens in tissues by the use of markers that are either fluorescent dyes or enzymes (such as horseradish peroxidase)
|Verb||1.||assay - analyze (chemical substances) |
analyse, analyze, examine, study, canvass, canvas - consider in detail and subject to an analysis in order to discover essential features or meaning; "analyze a sonnet by Shakespeare"; "analyze the evidence in a criminal trial"; "analyze your real motives"
bioassay - subject to a bio-assay
|2.||assay - 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"|
act, move - perform an action, or work out or perform (an action); "think before you act"; "We must move quickly"; "The governor should act on the new energy bill"; "The nanny acted quickly by grabbing the toddler and covering him with a wet towel"
struggle, fight - make a strenuous or labored effort; "She struggled for years to survive without welfare"; "He fought for breath"
have a go, give it a try - make an attempt at something; "I never sat on a horse before but I'll give it a go"
grope - search blindly or uncertainly; "His mind groped to make the connection"
endeavor, endeavour, strive - attempt by employing effort; "we endeavor to make our customers happy"
adventure, gamble, run a risk, take a chance, take chances, risk, chance, hazard - take a risk in the hope of a favorable outcome; "When you buy these stocks you are gambling"
1. A procedure that ascertains effectiveness, value, proper function, or other quality:
1. To subject to a procedure that ascertains effectiveness, value, proper function, or other quality:
Idioms: bring to the test, make trial of, put to the proof.
2. To make a judgment as to the worth or value of:
Idiom: take the measure of.
2. (archaic) (= try) to assay to + INFIN → intentar + infin
n. ensayo; análisis.