litmus paper
Paper containing a water-soluble pH indicator composed of a mixture of different dyes…Paper containing a water-soluble pH indicator composed of a mixture of different dyes extracted from certain lichens. The resulting piece of paper is used to test materials for acidity, turning red when acidic and blue when alkaline.
» Since primary school we've been checking for the qualities known as acidity and alkalinity with litmus paper.
fcbond · Tatoeba · CC BY 2.0 FRMeaning
1 senses(countable, uncountable)Paper containing a water-soluble pH indicator composed of a mixture of different dyes extracted from certain lichens. The resulting piece of paper is used to test materials for acidity, turning red when acidic and blue when alkaline.
Lackmuspapier
ла́кмусовая бума́гаlákmusovaja bumága
- unsized paper treated with litmus for use as an acid-base indicator
Examples
1 sentencesSince primary school we've been checking for the qualities known as acidity and alkalinity with litmus paper.
Translations
8 languagesBy meaning 1
By meaning 1
Forms
plural: litmus papers| Singular | litmus paper |
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| Plural | litmus papers |
regular
Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable