taxonomy
Americannoun
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the science or technique of classification.
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a classification into ordered categories.
a proposed taxonomy of educational objectives.
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Biology. the science dealing with the description, identification, naming, and classification of organisms.
noun
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the branch of biology concerned with the classification of organisms into groups based on similarities of structure, origin, etc
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the practice of arranging organisms in this way
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the science or practice of classification
Other Word Forms
Derived Forms
Etymology
Origin of taxonomy
First recorded in 1805–15, taxonomy is from the French word taxonomie. See taxo-, -nomy
Explanation
Taxonomy is all about organizing and classifying. To make it sound more scientific, you could refer to your project of reorganizing your spice rack according to smell as a taxonomy of spices. Taxonomy is a word used mainly in biology to talk about classifying living organisms, organizing them according to their similarities. If you've ever seen a chart with animals divided into species, genus, and family, you know what scientific taxonomy is. The word comes very straightforwardly from Greek words for "arrangement" — taxis — and "method" — nomia. So any special method for arranging or organizing things can be called taxonomy.
Vocabulary lists containing taxonomy
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Tyrannosaurus Lex(icon)
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The ACT Science Test: Biology Review 1
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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.
The old taxonomy still applies: people, process and technology.
From MarketWatch • May 27, 2026
The SEC also released a token taxonomy in March clarifying that it didn’t believe most crypto transactions fell under its jurisdiction.
From Barron's • Apr. 17, 2026
“We need to work out a clear taxonomy and stick within our lanes when it comes to enforcement,” said Selig.
From The Wall Street Journal • Jan. 29, 2026
As the authors note, "New species continue to be discovered, exemplified by Lycodon irwini, highlighting the ongoing progress in taxonomy and the incomplete understanding of herpetofaunal diversity and distribution in the region."
From Science Daily • Dec. 5, 2025
He lists 121 figures, and divides them according to a taxonomy that’s highly serviceable today:* grouping them according to the type of thing they did.
From "Words Like Loaded Pistols" by Sam Leith
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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.