Litmus

noun
'lɪtməs

Noun

  • a coloring material (obtained from lichens) that turns red in acid solutions and blue in alkaline solutions; used as a very rough acid-base indicator

Dictionary Validity

Tournament Word List (TWL)
SCRABBLE US
Collins Scrabble Words (CSW21)
SCRABBLE UK
ENABLE Dictionary
WORDS WITH FRIENDS
Combined US/UK Scrabble Dictionary
SOWPODS
North American Scrabble (NWL2020)
NASPA