noun. ['ˈlɪtməs'] 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.
- litmus paper
- litmus test
Words that Rhyme with Litmus
Example sentences of the word litmus
Wipe a piece of litmus paper on the side of the tank.
2. Verb, base form
A solution applied to litmus paper will either keep the litmus the same color or change it.
3. Noun, singular or mass
You can also get a simple litmus strip test that only tells you the pH level.