animal model

noun

: an animal sufficiently like humans in its anatomy, physiology, or response to a pathogen to be used in medical research in order to obtain results that can be extrapolated to human medicine
also : a pathological or physiological condition that occurs in such an animal and is similar to one occurring in humans

Examples of animal model in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
An animal model would also have allowed proper microbiome analysis, which could have provided far more meaningful insights. Hannah Millington, MSNBC Newsweek, 26 Aug. 2025 The new study by researchers in the United Kingdom reviewed 18 studies conducted over 15 years, including both animal models and human participants. A.j. Herrington, Forbes.com, 26 Aug. 2025 Miller and his team have already built a prototype machine that automates the administration of anesthesia and works very well in animal models. Big Think, 20 Aug. 2025 While results in mice do not always translate directly to humans due to differences in metabolism, lifespan, and immune systems, the work highlights the growing role of animal models in advancing mental health research. Kaif Shaikh, Interesting Engineering, 18 Aug. 2025 See All Example Sentences for animal model

Word History

First Known Use

1955, in the meaning defined above

Time Traveler
The first known use of animal model was in 1955

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Cite this Entry

“Animal model.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/animal%20model. Accessed 6 Sep. 2025.

Medical Definition

animal model

noun
: an animal sufficiently like humans in its anatomy, physiology, or response to a pathogen to be used in medical research in order to obtain results that can be extrapolated to human medicine
also : a pathological or physiological condition that occurs in such an animal and is similar (as in its pathology or physiology) to a human condition
experimental allergic encephalomyelitis is a useful animal model in the study of multiple sclerosis in humans
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