nnoun.substancea coloring material (obtained from lichens) that turns red in acid solutions and blue in alkaline solutions; used as a very rough acid-base indicatorSynset:litmus
Substance Holonyms:litmus paper
Hypernyms:acid-base indicator
Inherited Hypernyms:litmusacid-base indicatorindicatorcoloring materialmaterialsubstancematterphysical entityentity
Inherited Hypernyms:litmusacid-base indicatorindicatorcoloring materialmaterialsubstancepartrelationabstractionentity
nnoun.communicationa test that relies on a single indicatorExamples:- her litmus test for good breeding is whether you split infinitives
Hypernyms:exam examination test
Inherited Hypernyms:litmus testexaminationcommunicationacteventpsychological featureabstractionentity