Origin of litmus test
Words nearby litmus test
MORE ABOUT LITMUS TEST
What is a litmus test?
A litmus test is a very basic chemical test in which you dip a piece of litmus paper in an unknown solution and look at what color the paper changes to—either red or blue. If the paper doesn’t change color, then the solution is either chemically neutral (not an acid or a base) or it matches whatever color the litmus currently is.
Litmus testing is so common and well known that the phrase litmus test is also used to mean that something is a strong indication of a future success or failure, as in Record producers viewed the young singer’s career as a litmus test for a new generation of teenage musical stars.
Why is litmus test important?
The first records of the figurative sense of litmus test come from around 1955. It refers to the chemical litmus test, which originated in the 1300s, after scientists discovered that litmus changes color in reaction to acids and bases.
Chemical litmus tests are a common, simple experiment taught in elementary science classes when explaining acids and bases. Your teacher will ask you to dip litmus paper in an unknown liquid and then watch whether the paper changes color to determine if the liquid is an acid, a base, or neutral.
Outside of chemistry, the phrase litmus test is commonly used to describe an event or situation that is being closely monitored to be used when planning for the future. For example, national political parties often view local elections as litmus tests for which candidates or policies will be popular with a large number of voters.
Did you know ... ?
One reason litmus tests are useful is that the two most common gases in air, nitrogen and oxygen, are chemically neutral. Otherwise, exposing litmus tests to air would make the papers change color.
What are real-life examples of litmus test?
This image shows a collection of litmus tests in which litmus paper has been turned red or blue by several different solutions.
— Anne Helmenstine (@azareal) February 12, 2021
Almost all students will perform a litmus test experiment in chemistry class. But the figurative use of litmus test is also very popular, especially when discussing politics.
The litmus test as to whether you paid attention in school is if you know what a litmus test is
— gongtown (@gongs) February 13, 2015
On my second day in Guwahati, I see Union Home Minister @AmitShah making a grand entry in the middle of frenzied supporters of Assam. The polls are a litmus test on the Saffron might in northeast whether it can hold onto the 2016 wave. pic.twitter.com/6zXbE6rly2
— Aarti Tikoo Singh (@AartiTikoo) March 15, 2021
What other words are related to litmus test?
True or False?
When you perform a litmus test, you dip a piece of litmus paper in a solution to determine whether the liquid is an acid or a base.
How to use litmus test in a sentence
Brutally, the litmus test is whether they’re led or whether they’re managed.With many employees wary, company leaders prepare their return-to-office coronavirus vaccine policies|Jessica Davies|January 18, 2021|Digiday
The first thing we did was find a manufacturing partner that met our litmus tests of being able to produce genuine medical masks, was socially responsible, and was able to produce masks at scale to ensure they were affordable.This female-founded face mask brand had a wait-list of more than 40,000 customers|Rachel King|January 17, 2021|Fortune
The facilities have become a kind of litmus test for how policymakers rate the strength of the recovery.Fed leaders more optimistic on jobs, GDP growth at final 2020 policy meeting|Rachel Siegel|December 16, 2020|Washington Post
Satire has been a key feature of Kenyan political culture for decades now, humorously exposing and criticizing wrongs while also acting as a litmus test for free speech.In Kenya, a puppet TV show keeps building on the country’s legacy of political satire|Carlos Mureithi|November 29, 2020|Quartz
She’s a litmus test for us, along with all the other people that are working.
The gentleman was listed as Orthodox and kosher, which is way too religious for my friend whose JSwipe account I was test-driving.
Apparently, the company “failed to properly test its systems.”
If it was the United States, the operation will test the bounds of international law.
One chemical test involves measuring the relative amount of deuterium in water.
Whether it was actual ignorance, senility, or some obscure test, it's hard to know.Alfred Hitchcock’s Fade to Black: The Great Director’s Final Days|David Freeman|December 13, 2014|DAILY BEAST
For this use of the voice in the special service of will-power, or propelling force, it is necessary first to test its freedom.Expressive Voice Culture|Jessie Eldridge Southwick
The most promising of the methods which have been devised are cryoscopy, the methylene-blue test, and the phloridzin test.
The phloridzin test consists in the hypodermic injection of a small quantity of phloridzin.
Should the vapor not condense well, the test-tube may be immersed in a glass of cold water.
It is at best an empirical test and must be interpreted in the light of clinical symptoms.