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Answer:

We have spotted LITMUS (6 Letters) a total of 4 times in our database. Below you may see the clues associated with LITMUS and also when and where was it last seen:

Definition

A dyestuff extracted from certain lichens (Roccella tinctoria, Lecanora tartarea, etc.), as a blue amorphous mass which consists of a compound of the alkaline carbonates with certain coloring matters related to orcin and orcein.

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