comparator

noun

com·​par·​a·​tor kəm-ˈper-ə-tər 

-ˈpa-rə-

: a device for comparing something with a similar thing or with a standard measure

Examples of comparator in a Sentence

Recent Examples on the Web

An active comparator might also be used rather than an inert placebo because of ethics. —Brenda Goodman, CNN Money, 5 June 2025

Using a tool called a blink comparator, Tombaugh finally found the mysterious body in 1930. —Elizabeth Weise, USA TODAY, 18 Feb. 2025

During the days, when stargazing was impossible, Tombaugh would analyze the photographic plates with an optical device known as a blink comparator. —Jeffrey Kluger, TIME, 18 Feb. 2025

In engineering capability, Mercedes-AMG is already equal to or far better than its German and Italian comparators. —Mark Ewing, Forbes, 30 Dec. 2024

Word History

First Known Use

1883, in the meaning defined above

Medical Definition

comparator

noun

com·​par·​a·​tor kəm-ˈpar-ət-ər 

1

: an apparatus used for determining concentration of dissolved substances (as hydrogen ions) in solution by color comparison with known standards

2

: an instrument, device, or set of charts (as for use in chemical analysis and medical diagnosis) for the determination and specification of colors by direct comparison with a standardized system of colors