indicator

noun 0.721

indicator variable

noun 0.608

indication

noun 0.605

phenol red

noun 0.597

autoinducer

noun 0.597

leading indicator

noun 0.595

direction indicator

noun 0.578

indicative

noun 0.576

biomarker

noun 0.574

chemical agent

noun 0.573

indophenol

noun 0.560

chemosensor

noun 0.556

iodophor

noun 0.549

reagent

noun 0.545

indocyanine

noun 0.527

dial indicator

noun 0.524

inducer

noun 0.523

indicium

noun 0.521

litmus paper

noun 0.517

indole

noun 0.516

calibrator

noun 0.516

litmus

noun 0.515

chemical substance

noun 0.508

chemical hazard

noun 0.505

colorimeter

noun 0.501