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accretion

noun

ac·​cre·​tion ə-ˈkrē-shən How to pronounce accretion (audio)
1
: the process of growth or enlargement by a gradual buildup: such as
a
: increase by external addition or accumulation (as by adhesion of external parts or particles)
b
: the increase of land by the action of natural forces
2
: a product of accretion
especially : an extraneous addition
accretions of grime
accretionary
ə-ˈkrē-shə-ˌner-ē How to pronounce accretion (audio)
-ˌne-rē
adjective

Did you know?

The slow accretion of scientific knowledge over many centuries has turned into an avalanche in our time. Any accretion of ice on a grounded jet will result in takeoff delays because of the danger it poses. The land area of the Mississippi Delta increases every year from the accretion of soil washed down the Mississippi River, though the accretions happen so slowly that it's difficult to detect any increase at all. Accretion is often used in scientific writing; its usual verb form, accrue, is more often used in financial contexts ("This figure doesn't count the accrued interest on the investments").

Synonyms

Example Sentences

rocks formed by the slow accretion of limestone There was an accretion of ice on the car's windshield.
Recent Examples on the Web Those observations provided the first direct evidence that outflowing gas during disruption and accretion produces the powerful optical and radio emissions previously observed. Jennifer Ouellette, Ars Technica, 13 July 2022 Steven Litt reports the Akron installation features the work of 18 artists, many of whom use humble materials typical of Arte Povera to create revelatory objects and images through techniques of accretion, assemblage, and collage. Mike Rose, cleveland, 8 Aug. 2022 Aging tech products often suffer from what’s known as feature creep: excessive complexity caused by the accretion of bells and whistles over the years. Brian Contreras, Los Angeles Times, 27 July 2022 The film, too, is a slow, gradual accretion of detail that builds to a spectacular vista across the ridges and troughs, the spires and valleys of a lifelong, life-defining friendship. Jessica Kiang, Variety, 18 May 2022 Closer to a host star, gas giants are thought to form by the accretion of a large rocky core which then starts drawing in gas. John Timmer, Ars Technica, 6 Apr. 2022 Those of us who imbibed capitalism with our mother’s milk have a visceral, if latent, desire for accretion, growing fat, securing comfort. New York Times, 5 Apr. 2022 As a result, the conditions would take too long for core accretion, if possible at all. Wyatte Grantham-philips, USA TODAY, 5 Apr. 2022 Fox Weather pointed out that as much as three-quarters of an inch of ice accretion was reported in Central Texas yesterday, while half an inch of ice was measured in several other locations, including in Arkansas and western Tennessee. Julia Musto, Fox News, 5 Feb. 2022 See More

Word History

Etymology

borrowed from Latin accrētiōn-, accrētiō "increase," from accrē- (stem of accrēscere "to increase, be added") + -tiōn-, -tiō, suffix of action nouns — more at accrue

First Known Use

1615, in the meaning defined at sense 1

Time Traveler
The first known use of accretion was in 1615

Phrases Containing accretion

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