taxonomy
Americannoun
plural
taxonomies-
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
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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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.
A decided positivism—the painstaking naturalism of the pre-Darwinian life sciences, with their attention to the taxonomy, function and illustration of biological forms—made itself felt in his work habits and in his meticulous drawings.
From The Wall Street Journal • May 1, 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
Careful classification, known as taxonomy, is essential for understanding the animals that live in the CCZ.
From Science Daily • Mar. 25, 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
All I had to do was provide the illustrations, and I could draw as well as Fred could explain taxonomy.
From "The Line Tender" by Kate Allen
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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.