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单词 litmus test
释义

litmus test


litmus test

n.1. A test for chemical acidity or basicity using litmus paper.2. A test that uses a single indicator to prompt a decision: "The word 'hopefully' has become the litmus test to determine whether one is a language snob or a language slob" (William Safire).

litmus test

n 1. (Chemistry) a test to establish the acidity or alkalinity of a mixture 2. a critical indication of future success or failure

lit′mus test`


n. 1. a test using litmus paper or solution to indicate the acidity or alkalinity of a solution. 2. a crucial test using a single issue or factor as the basis for judgment. [1955–60]
Thesaurus
Noun1.litmus test - a coloring material (obtained from lichens) that turns red in acid solutions and blue in alkaline solutionslitmus test - a coloring material (obtained from lichens) that turns red in acid solutions and blue in alkaline solutions; used as a very rough acid-base indicatorlitmusacid-base indicator - an indicator that changes color on going from acidic to basic solutionslitmus paper - unsized paper treated with litmus for use as an acid-base indicator
2.litmus test - a test that relies on a single indicator; "her litmus test for good breeding is whether you split infinitives"exam, examination, test - a set of questions or exercises evaluating skill or knowledge; "when the test was stolen the professor had to make a new set of questions"
Translations

litmus test


litmus test

1. A chemical test used to determine acidity or alkalinity in a solution. The students performed a litmus test in class to learn whether the chemical solution was an acid or a base.2. A test used to determine someone's true intentions or beliefs. I used his reaction to my favorite movie as a litmus test to determine if he was worth dating.See also: litmus, test

litmus test

 1. Lit. a test used to determine the acidity or alkalinity of chemical substances. (Acid turns litmus paper red and alkaline compounds turn it blue.) I used a litmus test to show that the compound was slightly acid. 2. Fig. a question or experiment that seeks to determine the state of one important factor. His performance on the long exam served as a litmus test to determine whether he would go to college. The amount of white cells in my blood became the litmus test for diagnosing my disease.See also: litmus, test

a litmus test

JOURNALISMCOMMON If something is a litmus test of the quality or success of a particular thing, it is an effective way of proving it or measuring it. My personal litmus test when I have to decide whether to keep or discard something is whether or not I look at and enjoy it every day. The success of wind power represents a litmus test for renewable energy. Note: Litmus paper is used to test the acidity of substances. It turns red in acid conditions and blue in alkaline conditions. See also: litmus, test
EncyclopediaSeelitmus

litmus test


litmus test

n. A test for chemical acidity or basicity using litmus paper.

litmus test


  • noun

Synonyms for litmus test

noun a coloring material (obtained from lichens) that turns red in acid solutions and blue in alkaline solutions

Synonyms

  • litmus

Related Words

  • acid-base indicator
  • litmus paper

noun a test that relies on a single indicator

Related Words

  • exam
  • examination
  • test
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更新时间:2025/3/16 14:12:10