litmus,litmus 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 indicator paper- a material made of cellulose pulp derived mainly from wood or rags or certain grasses ...
References in classic literature ? He dropped a piece of litmus paper into an acid, when it changed instantly to red, and on floating it in an alkali it turned as quickly to blue. "The litmus paper is still the litmus paper," he enunciated in the formal manner of the lecturer. View ...
The meaning of LITMUS MILK is milk colored with litmus and used as a culture medium for determining acid or alkali production.
Litmus paper is used to test the pH balance of a liquid or substance. Most substances are either alkali or acid. Alkaline, or basic, chemicals include baking soda, ammonia and lye. Acidic substances include vinegar, lemon juice and battery acid. Alkalies and acids are at opposite extremes ch...
Also found in: Dictionary, Thesaurus, Medical. litmus litmus, organic dye usually used in the laboratory as an indicator of acidity or alkalinity (see acids and bases). Naturally pink in color, it turns blue in alkali solutions and red in acids. Commonly, paper is treated with the ...
Word family nounlitmus paperlitmuslitmus test Related topics:Chemistry lit·mus/ˈlɪtməs/noun[uncountableU] HCa chemical that turns red when it touches acid, and blue when it touches analkali石蕊〔一种遇酸变红、遇碱变蓝的化学物质〕 ...
1 x PH Test Paper Note: Can not indicate the Acid or alkali solution when its density was lower than 0.01%. Keep dry for the rest paper. Please allow 0-1cm errors due to manual measurement. Item color displayed in photos may be showing slightly different on your computer monitor since mo...
litmus paper absorbent paper impregnated with a solution of litmus, dried and cut into strips. It is used to indicate the acidity or alkalinity of solutions. If dipped into alkaline solution it remains blue; acid solution turns it red. It is used to test urine and other body fluids; it ha...
litmus in Chemistry topic From Longman Dictionary of Contemporary Englishlit‧mus /ˈlɪtməs/ noun [uncountable] a chemical that turns red when it touches acid, and blue when it touches an alkaliExamples from the Corpuslitmus• The case of travellers is something of a litmus test....
a substance that turns red when it touches an acid and blue when it touches an alkali litmus paper Oxford Collocations Dictionary Word Origin Want to learn more? Find out which words work together and produce more natural-sounding English with the Oxford Collocations Dictionary app. Try it ...