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litmus

The correct spelling is litmus.

How to pronounce litmus

noun

IPA: /ˈlɪtməs/

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The correct spelling is litmus. A dyestuff extracted from certain lichens, that changes color when exposed to pH levels greater than or less than certain critical levels.

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Definition

noun

  1. 1.A dyestuff extracted from certain lichens, that changes color when exposed to pH levels greater than or less than certain critical levels.
  2. 2.A simple test of acidity in a liquid using litmus, usually in the form of litmus paper.
  3. 3.A simple test of any attribute; a litmus test.

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