mouse

1 of 2

noun

plural mice ˈmīs How to pronounce mouse (audio)
1
: any of numerous small rodents (as of the genus Mus) with pointed snout, rather small ears, elongated body, and slender tail
2
plural also mouses : a small mobile manual device that controls movement of the cursor and selection of functions on a computer display
3
: a timid person
4
: a dark-colored swelling caused by a blow
specifically : black eye

mouse

2 of 2

verb

moused; mousing

intransitive verb

1
: to hunt for mice
2
: to search or move stealthily or slowly

transitive verb

1
: to search for carefully
usually used with out
2
obsolete
a
: bite, gnaw
b
: to toy with roughly
Phrases
mouse over
computing
: to use a mouse to position a cursor over (a specific location or element on a computer screen) without clicking the mouse's button
Rich media is pretty much anything that moves when you interact with it. It can be a Flash animation, or a streaming video clip, or an image rotator that changes when you mouse over it. Ariel Bleicher

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Example Sentences

Noun The house was infested with mice and rats. He moved the mouse to click on the icon. Verb a cat mousing along in the shadows of the garden
Recent Examples on the Web
Noun
The findings corroborate what researchers have seen in mouse models and petri dish experiments, but there's much more to learn about how EV-D68 causes AFM in rare cases. Beth Mole, Ars Technica, 13 Sep. 2022 Such limitations have led some scientists to question the value of using mouse models for Alzheimer’s research. Agnès Lacreuse, The Conversation, 31 Aug. 2022 Last, but not least—the adorable design is hardly an afterthought—there are many animals to choose from, including a bumblebee, mouse, hedgehog, cow, ladybug, piglet, and tiger. Lauren Gray, Popular Mechanics, 18 Aug. 2022 To test this theory, the experts turned to mouse models. William A. Haseltine, Forbes, 1 Aug. 2022 Understanding these mechanisms in humans could even help researchers create better mouse models. Sara Reardon Reprints, STAT, 29 Apr. 2021 Cristie is far from the only person to bring the mouse into their house. Amelia Tait, refinery29.com, 29 Aug. 2022 Wienand uses these data to figure out how the mouse’s gait changes as its ALS progresses. Liz Tormes, Scientific American, 26 Aug. 2022 Disney reported better than expected earnings this week, proving the mouse continues to have pricing power. Jj Kinahan, Forbes, 12 Aug. 2022
Verb
So users can mouse across devices and drag and drop files between them. Mark Knapp, PCMAG, 15 Mar. 2022 Volume and mute are easy to access without having to mouse over to your video application. Zane Pickett, Forbes, 28 Oct. 2021 The viewer can mouse over each element and read a brief description, and then perhaps click a link to access more details. Expert Panel®, Forbes, 11 Oct. 2021 At the end of a long day of video calls and Slack messages, workers unable or unwilling to meet up at the bar can mouse over to another tab for some virtual socialization on apps such as Discord and Clubhouse. Brian Contreras, Los Angeles Times, 5 Aug. 2021 Zoom in on the map to find individual restaurants and mouse over locations to access the latest state inspection reports. Orlando Sentinel Staff, orlandosentinel.com, 26 Mar. 2021 In what will be the office of incoming press secretary Jen Psaki, a computer keyboard and mouse on her desk were encased in plastic. The Associated Press, NOLA.com, 20 Jan. 2021 Nonadjustable armrest height and width means this chair won't support keyboard and mouse hands properly for many, if not most, people. Jim Salter, Ars Technica, 1 Dec. 2020 To figure out how cells do this, researchers tested two known for going the distance—a soil-dwelling amoeba (Dictyostelium discoideum) and mouse pancreatic cancer cells. Lucy Hicks, Science | AAAS, 27 Aug. 2020 See More

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

Word History

Etymology

Noun

Middle English, from Old English mūs; akin to Old High German mūs mouse, Latin mus, Greek mys mouse, muscle

First Known Use

Noun

before the 12th century, in the meaning defined at sense 1

Verb

13th century, in the meaning defined at intransitive sense 1

Time Traveler
The first known use of mouse was before the 12th century

Dictionary Entries Near mouse

Cite this Entry

“Mouse.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mouse. Accessed 4 Oct. 2022.

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Kids Definition

plural mice
ˈmīs
1
: a very small furry gnawing animal that is a rodent with a pointed snout and long slender tail
2
: a person without spirit or courage
3
plural also mouses : a small movable device that is connected to a computer and used to move the cursor and select functions on the screen
mouselike
ˈmau̇s-ˌlīk
adjective

Medical Definition

plural mice ˈmīs How to pronounce mouse (audio)
1
: any of numerous small rodents with pointed snout, rather small ears, elongated body, and slender hairless or sparsely haired tail, including all the smaller members of the genus Mus (as the medically significant house mouse, M. musculus) and many members of other rodent genera and families having little more in common than their relatively small size
2
: a dark-colored swelling caused by a blow
specifically : black eye

More from Merriam-Webster on mouse

Last Updated: 24 Sep 2022

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