Definition of "discriminator" in English

noun

1. A person who discriminates, as:

2. A test or variable, etc. that serves to distinguish between different things.

   • Colour is not an effective discriminator when it comes to the spiciness of food.

3. (physics) Any of several electronic devices that convert some property of a signal into an amplitude whose value is proportional to the difference between the value of the input signal and that of a standard.

4. (marketing) A feature of the seller's offering that differs from a competitor's offering and is important to the buyer in question.

   • An especially strong warranty can be a discriminator in some marketplaces.