litmus definition

  • noun:
    • A water-soluble azure dust produced from particular lichens that modifications to red with increasing acidity and also to blue with increasing basicity.
    • A dyestuff extracted from specific lichens, that changes color when confronted with pH amounts more than or significantly less than particular critical amounts.
    • an easy test of acidity in a liquid using litmus, typically in the shape of litmus paper.
    • an easy test of any feature; a litmus test.
    • A dyestuff obtained from particular lichens (Roccella tinctoria, Lecanora tartarea, etc.), as a blue amorphous mass which consist of a compound of this alkaline carbonates with particular color things associated with orcin and orcein.
    • an unusual coloring matter procured from Roccella tinctoria and some various other lichens.
    • a coloring product (gotten from lichens) that turns red in acid solutions and blue in alkaline solutions; made use of as a tremendously harsh acid-base indicator

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