acid test


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acid test

A conclusive test. The phrase comes from the 19th-century practice of testing metals in nitric acid to determine if they contained gold. Restructuring the organization will be the acid test that determines whether or not it can survive the sudden downturn in the economy.
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acid test

Fig. a test whose findings are beyond doubt or dispute. The senator doesn't look too popular just now, but the acid test will be if he gets reelected.
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acid test

A decisive trial to determine worth or quality, as in Exposure to brilliant sunlight is the acid test for showing this fabric won't fade. Alluding to a 19th-century chemical test for distinguishing gold from other metals, this term was used figuratively by the early 1900s.
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the acid test

COMMON If you call something the acid test, it will prove how effective or useful something is. The acid test for the vaccine will be its performance in the south where the disease is more widespread. So far, I don't feel too bad but I'm waiting for my first really stressful day when things go wrong. That will be the real acid test. Note: Nitric acid can be used to test whether a metal is pure gold because it damages most metals but does not affect gold.
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the acid test

a situation or event which finally proves whether something is good or bad, true or false, etc.
The original use of the phrase was to describe a method of testing for gold with nitric acid (gold being resistant to the effects of nitric acid).
1990 Which? These deals are designed to encourage impulse buying, so the acid test is whether you would have bought anyway.
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the ˌacid ˈtest (of something)

(also the ˈlitmus test especially in American English ) a situation which finally proves whether something is good or bad, true or false, etc: They’ve always been good friends, but the acid test will come when they have to share a flat.Both these expressions originally referred to chemical tests. The acid test uses nitric acid to test if something is made of gold. The litmus test uses litmus paper to test for acids and alkalis.
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acid test, the

A conclusive trial to establish the truth or worth of something or someone. The term comes from a test long used to distinguish gold from copper or some other metal. Most corrosive acids do not affect gold, but a solution of nitric acid and hydrochloric acid dissolves the metal. Used literally by jewelers in the late nineteenth century, the term soon was employed figuratively, by U.S. president Woodrow Wilson among others.
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As the film states, "If the smallest things in the ocean are affected by acidification, the entire food web becomes vulnerable." Acid Test calls to establish more marine protected areas, employ sustainable fishing practices and warns we must emit less C[O.sub.2] for our oceans to remain inhabitable.
"Pre-season has gone very well and we should have won the Charity Shield and done better in Munich, but these games had a good edge to them and the match will prove to be the acid test of whether or not the pre-season was the right one." MEANWHILE, Liverpool striker Fernando Torres has fired out a warning of his own to their Premier League rivals.
"But the games against Leamington and Chasetown will be the acid test. They are two of the top sides but I certainly think
"Next week will be the acid test, we are playing away from home against a good side and it will be a knockout in a lot of ways," Cockerill said.
Billerica, MA-based Millipore Corp., a provider of products and services for laboratories, and San Diego, CA-based GenProbe Inc., a nucleic acid test manufacturer, announced an agreement in which Millipore will market and sell Gen-Probe's Mycoplasma Tissue Culture Non-Isotopic (MTC-NI) test.
Food and Drug Administration has announced the approval of a license supplement for the first fully automated West Nile Virus (WNV) nucleic acid test for donor screening.
The acid test is simply one question: "Absent government interference, would the market support ethanol?" Today's answer is a resounding "Yes!"
The result of this research, the BASF/Q-Sun Acid Test, is reported to be the only acid etch test for clearcoats supported by years of research, data, and proven correlation.
The acid test of the A6's dashboard controls, or Multi-Media Interface, was to operate it without having to thumb through the manual.
Much of the stuff, as it turned out, was unbuilt, and the obvious acid test of such computer enabled fantasies will be when they finally emerge in the flesh, from behind the seductive gauze of imagineering.
Dash To The Top faces the acid test tomorrow when she lines up for the Darley Irish Oaks at the Curragh.
While the Bio-Bus may evoke images of Ken Kesey's Merry Pranksters Psychedelic Bus and the Electric Kool Aid Acid Test, the Hot Buttered Rum String Band has a more sober vision.