English noun: acid-base indicator | |||
1. | acid-base indicator (substance) an indicator that changes color on going from acidic to basic solutions | ||
Broader (hypernym) | indicator | ||
Narrower (hyponym) | bromophenol blue, bromothymol blue, bromphenol blue, bromthymol blue, congo red, litmus, litmus test, methyl orange, phenolphthalein, tetrabromo-phenolsulfonephthalein | ||