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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.
n.
additional proof that something that was believed (some fact or hypothesis or theory) is correct; "fossils provided further confirmation of the evolutionary theory"
n.
the state of inactivity following an interruption; "the negotiations were in arrest"; "held them in check"; "during the halt he got some lunch"; "the momentary stay enabled him to escape the blow"; "he spent the entire stop in his seat"
v.
find out, learn, or determine with certainty, usually by making an inquiry or other effort; "I want to see whether she speaks French"; "See whether it works"; "find out if he speaks Russian"; "Check whether the train leaves on time"
v.
be careful or certain to do something; make certain of something; "He verified that the valves were closed"; "See that the curtains are closed"; "control the quality of the product"
n.
a state of being confined (usually for a short time); "his detention was politically motivated"; "the prisoner is on hold"; "he is in the custody of police"
v.
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"
v.
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"
v.
discover the location of; determine the place of; find by searching or examining; "Can you locate your cousins in the Midwest?"; "My search turned up nothing"
v.
discover or determine the existence, presence, or fact of; "She detected high levels of lead in her drinking water"; "We found traces of lead in the paint"
v.
establish after a calculation, investigation, experiment, survey, or study; "find the product of two numbers"; "The physicist who found the elusive particle won the Nobel Prize"
v.
provide evidence for; stand as proof of; show by one's behavior, attitude, or external attributes; "His high fever attested to his illness"; "The buildings in Rome manifest a high level of architectural sophistication"; "This decision demonstrates his sense of fairness"
v.
establish the validity of something, as by an example, explanation or experiment; "The experiment demonstrated the instability of the compound"; "The mathematician showed the validity of the conjecture"