formation

noun

for·​ma·​tion fȯr-ˈmā-shən How to pronounce formation (audio)
1
: an act of giving form or shape to something or of taking form : development
2
: something that is formed
new word formations
3
: the manner in which a thing is formed : structure
the peculiar formation of the heart
4
: a major kind of plant growth (such as forest, grassland, or tundra) characteristic of a broad ecological region
5
a
: any igneous, sedimentary, or metamorphic rock represented as a unit
b
: any sedimentary bed or consecutive series of beds sufficiently homogeneous or distinctive to be a unit
6
: an arrangement of a body or group of persons or things in some prescribed manner or for a particular purpose
flying in formation

Examples of formation in a Sentence

The book explains the formation of the planets. The soldiers were marching in formation. The team ran on the field and lined up in a punt formation.
Recent Examples on the Web Each Grand Prix weekend, the Vantage will lead all 20 F1® cars on the race’s formation lap,before taking its place at the exit of the pit lane, ready to intervene and control the pace of the F1 race when required. Robb Report Studio, Robb Report, 15 Apr. 2024 Joseph, who launched his own political party, has emerged as a major player and power-broker in the new presidential council’s formation. Jacqueline Charles, Miami Herald, 12 Apr. 2024 The City Council passed a resolution on April 2, declaring a housing crisis in the city and calling for the formation of the task force. Nwa Democrat-Gazette, arkansasonline.com, 11 Apr. 2024 California California’s home insurer of last resort sees enrollment surge, raising concerns over its finances March 15, 2024 Waxman said the formation of the safety council was partly in response to insurance companies dropping policyholders in the state. Ruben Vives, Los Angeles Times, 10 Apr. 2024 Between 50 and 300 meters (m) in depth, the Bisbee is underlain by approximately two kms thick of the same Paleozoic carbonate formations that host the 110 MT Hermosa-Taylor zinc-lead-silver deposit of South32 located 60 km southwest of Tombstone. Kansas City Star, 10 Apr. 2024 Rock formations in the east are denser, allowing shaking to easily transfer across hundreds of miles, according to the USGS. Dan Rosenzweig-Ziff, Washington Post, 5 Apr. 2024 Our research group has been interested in the fundamental question of pattern formation in EEG. Giridhar Kalamangalam, Discover Magazine, 4 Apr. 2024 Like other writers grappling with the legacy of colonialism, Ms. Condé centered her work on broadly political themes, examining the formation of different individual and collective identities. Clay Risen, New York Times, 2 Apr. 2024

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

Word History

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of formation was in the 15th century

Dictionary Entries Near formation

Cite this Entry

“Formation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/formation. Accessed 19 Apr. 2024.

Kids Definition

formation

noun
for·​ma·​tion fȯr-ˈmā-shən How to pronounce formation (audio)
1
: a forming of something
2
: something formed
3
: the manner in which a thing is formed : structure, shape
4
: a bed of rocks or series of beds recognizable as a unit
5
: an arrangement or grouping of persons, ships, or airplanes

Medical Definition

formation

noun
for·​ma·​tion fȯr-ˈmā-shən How to pronounce formation (audio)
1
: an act of giving form or shape to something or of taking form : development
2
: the manner in which a thing is formed : structure

More from Merriam-Webster on formation

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