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

Moser and his team of scientists performed this technique in adult Mongolian gerbils instead of mice or rats, which were used in previous studies. Justin Chen, STAT, "Pulses of light restored hearing in gerbils. Could that lead to higher-tech cochlear implants?," 11 July 2018 In one mouse, 79% of her eggs ended up with the color modifying gene on both chromosomes. Jon Cohen, Science | AAAS, "‘Gene drive’ passes first test in mammals, speeding up inheritance in mice," 10 July 2018 This method is not harmful to mice or their predators, making it a safe method for targeting ticks. Jennifer Walter, Milwaukee Journal Sentinel, "The Tick App offers resources to identify, remove ticks as part of Lyme disease study," 3 July 2018 Microsoft is also reportedly planning LTE versions of its smaller Surface tablet, along with cheaper keyboard covers, a stylus, and mouse. Tom Warren, The Verge, "Microsoft’s $400 Surface tablet hits the FCC, could launch soon," 3 July 2018 The garden was there for Beatrix Potter’s country mice to learn their lessons and to bestow metaphor on the coded conversations of Edith Wharton’s socialites. Stephanie Hanes, The Christian Science Monitor, "'Life in the Garden' lovingly recalls the place of gardens in an author's life," 14 June 2018 Using a computer keyboard and mouse to monitor one’s function means researchers need no special equipment. Sumathi Reddy, WSJ, "Clues to Parkinson’s and Alzheimer’s From How You Use Your Computer," 29 May 2018 Two other mice became severely dehydrated that month when no one checked their watering device. Nanette Asimov, San Francisco Chronicle, "UC Berkeley researchers’ errors resulted in deaths of 22 lab animals," 16 May 2018 Thaïs Vanderheyden has done the work of mapping out a seek-and-find conversation by framing the whole book as a game in which a mouse, Pip, has to find 100 playmates who are hiding in lots of busy, colorful paintings. Meghan Cox Gurdon, WSJ, "Children’s Books: So Much to See—and Talk About," 12 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

5 Nov 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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