particle

noun

par·​ti·​cle ˈpär-ti-kəl How to pronounce particle (audio)
1
a
: a minute quantity or fragment
b
: a relatively small or the smallest discrete portion or amount of something
2
archaic : a clause or article of a composition or document
3
: any of the basic units of matter and energy (such as a molecule, atom, proton, electron, or photon)
4
: a unit of speech expressing some general aspect of meaning or some connective or limiting relation and including the articles, most prepositions and conjunctions, and some interjections and adverbs
the particle up has a perfective meaning in phrases such as beat up and cut up
5
: a small eucharistic wafer distributed to a Roman Catholic layman at Communion

Examples of particle in a Sentence

There is not a particle of evidence to support their claim. There is not a particle of truth in what he said. The phrasal verb “look up” consists of the verb “look” and the adverbial particle “up.”
Recent Examples on the Web These giant explosions from the sun send energy, light, and particles throughout the solar system. John Tufts, The Indianapolis Star, 9 Apr. 2024 Eclipses aren't known for shedding solar particles or moon dust that drifts down to coat us. The Arizona Republic, 7 Apr. 2024 Boogers can be yellow, green, or brown because of the particles that get trapped. Maggie O'Neill, Health, 7 Apr. 2024 Evaporative humidifiers have the advantage of using filters, which helps avoid the white particles that can settle when using an ultrasonic humidifier. Paige Bennett, Better Homes & Gardens, 6 Apr. 2024 Charged particles known as plasma create space weather that interacts with an upper layer of Earth’s atmosphere, called the ionosphere. Ashley Strickland, CNN, 3 Apr. 2024 Dish soap helps break down grease and food particles, and warm water aids in lifting them off the microwave's surfaces. Maryal Miller Carter, USA TODAY, 26 Mar. 2024 But researchers never knew for sure how these microscopic particles enlarged into sand-sized particulates, or whether the atmospheric fragments would have even stayed intact as the dunes took shape. Christian Thorsberg, Smithsonian Magazine, 25 Mar. 2024 The way a cloud forms or responds to human intervention will depend on a range of complex, shifting factors — from weather to how particles spread by humans interact with other aerosols already in the air. Justine Calma, The Verge, 21 Mar. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'particle.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

Middle English, from Latin particula, from diminutive of part-, pars

First Known Use

14th century, in the meaning defined at sense 1a

Time Traveler
The first known use of particle was in the 14th century

Dictionary Entries Near particle

Cite this Entry

“Particle.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/particle. Accessed 18 Apr. 2024.

Kids Definition

particle

noun
par·​ti·​cle ˈpärt-i-kəl How to pronounce particle (audio)
1
: one of the very small parts of matter (as a molecule, atom, or electron)
2
: a very small quantity or piece
3
: the smallest possible portion

Medical Definition

particle

noun
par·​ti·​cle ˈpärt-i-kəl How to pronounce particle (audio)
1
: one of the minute subdivisions of matter (as an atom or molecule)
2
: a minute quantity or fragment

More from Merriam-Webster on particle

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!