indicator

Definition

• n. a signal for attracting attention
• n. a device for showing the operating condition of some system
• n. (chemistry) a substance that changes color to indicate the presence of some ion or substance; can be used to indicate the completion of a chemical reaction or (in medicine) to test for a particular reaction

Word forms

Plural

indicators

Example sentences

1. n.

   The speedometer is an important indicator of how fast the car is going.

2. n.

   In programming, an indicator can show the status of a process.