mouse

noun
\ ˈmau̇s \
plural mice\ˈmīs \

Definition of mouse 

(Entry 1 of 2)

1 : any of numerous small rodents (as of the genus Mus) with pointed snout, rather small ears, elongated body, and slender tail

2 : a timid person

3 : a dark-colored swelling caused by a blow specifically : black eye

4 plural also mouses : a small mobile manual device that controls movement of the cursor and selection of functions on a computer display

mouse

verb
\ ˈmau̇z \
moused; mousing

Definition of mouse (Entry 2 of 2)

intransitive verb

1 : to hunt for mice

2 : to search or move stealthily or slowly

transitive verb

1 obsolete

a : bite, gnaw

b : to toy with roughly

2 : to search for carefully usually used with out

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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Examples of mouse in a Sentence

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
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Recent Examples on the Web: Noun

Further research showed that what applied to mice would also apply to humans. David Grossman, Popular Mechanics, "The Belt That Protects Against Gamma Radiation," 27 June 2018 In testing on laboratory mice 84.6 percent of those fed L. lactis and the cholera pathogen together survived, compared with 45.7 percent of those fed the cholera pathogen alone. Richard Conniff, Scientific American, "New Probiotic Cholera Vaccine Can Outrace the Infection’s Rapid Spread," 13 June 2018 In 2015, Marlin co-authored a study in the journal Nature on the effect oxytocin had on mice. National Geographic, "Is Maternal Instinct Only for Moms? Here's the Science.," 9 May 2018 The books tell you the breed was trained to hunt everything from mice to foxes. Jerry Shnay, Daily Southtown, "Shnay: New grocery store brings hope to village shoppers," 30 Apr. 2018 Mechanical mice are more susceptible to dust particles that can get caught inside. Paul Sarconi, WIRED, "How to Clean Your Computer Inside and Out," 24 Apr. 2018 Taken together, the findings of the experiments suggest rats, mice and humans are all vulnerable to sunk costs. Maya Miller, Scientific American, "Why It’s So Hard to Junk Bad Decisions—Edging Closer to Understanding “Sunk Cost”," 12 July 2018 The other half is spent fighting in meat mechs, which occurs via a two-dimensional brawler controlled with simple mouse and keyboard controls. Julie Muncy, WIRED, "Extreme Meatpunks Forever," 11 July 2018 The end of June wasn’t a great time for health violations in University City restaurants: both Han Dynasty and Bobby’s Burger Palace were among the eateries closed thanks to mouse droppings and roaches. Aubrey Nagle, Philly.com, "Philly preps for the Fourth, Allentown Cadets march on | Morning Newsletter," 3 July 2018

Recent Examples on the Web: Verb

The Settings app has been updated to include the translucency and mouse hot-tracking effects that Fluent brings, for example. Peter Bright, Ars Technica, "A look at what the Windows 10 April 2018 update brings," 30 Apr. 2018 Which could explain why the folks at Disney World aren't Mickey-mousing around. Neil Cavuto, Fox News, "Cavuto: As if we need a storm to remind us Christmas is over," 3 Jan. 2018 Former Disney blogging couple Charity and Matt Craig used the theme park as inspiration for their jewelry business, and are now selling quote bracelets to mouse lovers and beyond. Kyle Arnold, OrlandoSentinel.com, "Disney-inspired bracelet company uses Instagram to spread message," 20 Apr. 2018 The lab mice would pick up whatever the pet-shop mouse was carrying—everything from fur mites and pinworms to mouse hepatitis—and perhaps become immunologically more like the pet-shop mouse. Cassandra Willyard, Scientific American, "Squeaky Clean Mice Could be Ruining Research," 9 Apr. 2018 The old, timid lifer mousing through the revolving door has served so many in government for so long that surely the trick will never die. Kent Sepkowitz, Slate Magazine, "Confessions of a Washington Swamp Creature," 17 Feb. 2017 KeyRocket for Gmail Using keyboard shortcuts is always more efficient than mousing through menus, but many people don’t take the time to learn and memorize them. Michael Ansaldo, PCWorld, "4 Chrome extensions that make you more productive in Gmail," 4 May 2017 The link between such human settlements and house mouse fluctuations became even clearer when the team compared their fossil results to mouse populations around today’s hunter-gatherers. Joe Blossom, National Geographic, "Humans 'Domesticated' Mice 15,000 Years Ago," 27 Mar. 2017

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.

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First Known Use of mouse

Noun

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

Verb

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

History and Etymology for mouse

Noun

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

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Learn More about mouse

Statistics for mouse

Last Updated

10 Sep 2018

Look-up Popularity

Time Traveler for mouse

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

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More Definitions for mouse

mouse

noun

English Language Learners Definition of mouse

: a very small animal that has a pointed nose and a long, thin tail

: a small device that is connected to a computer and that you move with your hand to control the movement of a pointer on the computer screen

mouse

noun
\ ˈmau̇s \
plural mice\ˈmīs \

Kids Definition of mouse

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

Other words from mouse

mouselike \ˈmau̇s-ˌlīk \ adjective

mouse

noun
\ ˈmau̇s \
plural mice\ˈmīs \

Medical Definition of mouse 

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

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Comments on mouse

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