mar·​mo·​set | \ ˈmär-mə-ˌset How to pronounce marmoset (audio) , -ˌzet \

Definition of marmoset

: any of numerous small soft-furred South and Central American monkeys (family Callithricidae) with claws instead of nails on all the digits except the big toe

Illustration of marmoset

Illustration of marmoset

Examples of marmoset in a Sentence

Recent Examples on the Web One was for the deaths of marmoset monkeys that became trapped in their nest box within their cage in August. Sara Tabin, The Salt Lake Tribune, 20 Mar. 2021 In a June preprint on bioRxiv, neuroscientist and bioengineer Viviana Gradinaru and her team at the California Institute of Technology describe such an engineered virus that selectively infects the neurons of a marmoset. Kelly Servick, Science | AAAS, 28 Oct. 2020 Studying marmoset neural crest implications, therefore, could shed new light on human development too. Caroline Delbert, Popular Mechanics, 27 Oct. 2020 That group, Stop Animal Exploitation Now, also filed a complaint related to the accidental crushing death of a marmoset. Hallie Miller,, 7 Oct. 2020 In 2006, scientists described the adoption of a marmoset by a family of wild capuchin monkeys. Brigit Katz, Smithsonian Magazine, 3 Mar. 2020 Study author Michael Heide, also of the Max Planck Institute, says the team wanted to study a model organism closely related to humans, and the two most practical options were the marmoset and the macaque. Courtney Sexton, Smithsonian Magazine, 18 June 2020 There from day one From the very beginning, common marmoset dads are there to help. Bridget E. Hamilton, National Geographic, 16 June 2020 There were a few studies with SARS [severe acute respiratory syndrome] and other related viruses that showed that marmosets, macaques, and even some strains of mice, ferrets, and cats, were susceptible. David Grimm, Science | AAAS, 18 Mar. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'marmoset.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of marmoset

14th century, in the meaning defined above

History and Etymology for marmoset

Middle English marmusette kind of monkey, from Middle French marmoset grotesque figure, from marmouser to mumble, of imitative origin

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The first known use of marmoset was in the 14th century

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Cite this Entry

“Marmoset.” Dictionary, Merriam-Webster, Accessed 2 Dec. 2021.

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English Language Learners Definition of marmoset

: a small monkey of South and Central America that has soft fur and a long tail


mar·​mo·​set | \ ˈmär-mə-ˌset How to pronounce marmoset (audio) \

Kids Definition of marmoset

: a small monkey of South and Central America with soft fur and a bushy tail

More from Merriam-Webster on marmoset

Nglish: Translation of marmoset for Spanish Speakers Encyclopedia article about marmoset


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