Word | Noun | Adjective | Verb | Adverb |
---|---|---|---|---|
acid-base indicator | Yes | No | No | No |
litmus | Yes | No | No | No |
acid-base indicator (noun) | litmus (noun) |
---|---|
an indicator that changes color on going from acidic to basic solutions | 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 |