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zoology

American  
[zoh-ol-uh-jee] / zoʊˈɒl ə dʒi /

noun

  • zoologies
    plural
  1. the science or branch of biology dealing with animals.

  2. a treatise on zoology.

  3. the animal life of a particular region.


zoology British  
/ ˌzəʊəˈlɒdʒɪkəl, zəʊˈɒlədʒɪ, zuː-, ˌzuːə- /

noun

  1. the study of animals, including their classification, structure, physiology, and history

  2. the biological characteristics of a particular animal or animal group

  3. the fauna characteristic of a particular region

  4. a book, treatise, etc, dealing with any aspect of the study of animals

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

zoology Scientific  
/ zō-ŏlə-jē,zo̅o̅-ŏl- /
  1. The scientific study of organisms in the kingdom Animalia, including their growth and structure.


zoology Cultural  
  1. The scientific study and classification of animals. (See Linnean classification.)


Other Word Forms

Derived Forms

Inflected Forms

Nouns

Etymology

Origin of zoology

First recorded in 1660–70; zoo- + -logy

Explanation

If you're fascinated by monkey business or just love horsing around, you might consider a career in zoology — the scientific study of animals. According to some usage experts, most of us mispronounce the word zoology. The first syllable of this noun is correctly pronounced with a long o sound, as in toe, rather than the "oo" in zoo. Yet our error is considered acceptable because if you're going to study animal life and behavior, one of the best places to do it is at the zoo.

Keep Reading on Vocabulary.com

Vocabulary lists containing zoology

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.

See Examples For:

Attenborough's lifelong passion for the natural world began as child, and he went on to study geology and zoology at university.

From Barron's May 6, 2026

"Ants are everywhere," said lead author Arthur Matte, a Ph.D. student in zoology at the University of Cambridge.

From Science Daily Dec. 22, 2025

It put out feelers, including to Aberdeen University's zoology department and museums.

From BBC Dec. 3, 2025

As a graduate student in zoology in the 1960s, the Scotsman Iain Douglas-Hamilton took on a dilemma in East Africa.

From The Wall Street Journal Oct. 30, 2025

Willie the Wildkit looks approximately like a mountain lion, though, and while I am admittedly not an expert in zoology, I'm reasonably sure that mountain lions do not, in fact, respect everyone.

From "Will Grayson, Will Grayson" by John Green and David Levithan

Heraldry is so full of these fantastic creatures, that, in some zoologies, we find a separate chapter or a supplement dedicated to what is denominated heraldic zoology.

From Miscellaneous Essays by Thomas De Quincey

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