classifier
Americannoun
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a person or thing that classifies.
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a device for separating solids of different characteristics by controlled rates of settling.
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Grammar. (in Chinese, Japanese, and other languages) a word or morpheme that corresponds to a semantic class of nouns and regularly accompanies any noun of that class in certain syntactic constructions, such as those of numeration.
Etymology
Origin of classifier
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
For example, last May, Anthropic’s biological safety classifier blocked a request for Claude’s assistance in authoring a grant application for scientific funding.
From Salon ● Sep. 11, 2026
The success of machines like the Dorr classifier and Dorr thickener led to the Dorr Company and the Dorr Foundation, where he would make his most enduring mark on society.
From The Wall Street Journal ● Jul. 4, 2026
"My team is currently developing a tear-protein-based classifier that can differentiate brain cancer patients from healthy volunteers with high levels of accuracy," she said.
From BBC ● Sep. 28, 2025
An algorithm known as a classifier automatically categorizes content, allowing Character.AI to identify words that might violate its rules and filter conversations.
From Los Angeles Times ● Feb. 25, 2025
Mendel, as we shall see, was an instinctual gardener—a breeder of plants, a counter of seeds, an isolator of traits; Darwin was a garden digger—a classifier of plants, an organizer of specimens, a taxonomist.
From "The Gene" by Siddhartha Mukherjee
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
