Litmus paper

noun

Definitions

Noun
  1. 1
    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. countable, uncountable
  2. 2
    unsized paper treated with litmus for use as an acid-base indicator wordnet

Next best steps

Mini challenge

Unscramble this word: litmuspaper