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accretion

[ uh-kree-shuhn ]
/ əˈkri ʃən /
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noun
an increase by natural growth or by gradual external addition; growth in size or extent.
the result of this process.
an added part; addition: The last part of the legend is a later accretion.
the growing together of separate parts into a single whole.
Law. increase of property by gradual natural additions, as of land by alluvion.
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Origin of accretion

First recorded in 1605–15; from Latin accrētiōn- (stem of accrētiō ), equivalent to accrēt(us), past participle of accrēscere “to grow” (ac- prefix meaning “toward” + crē- “grow” + -tus past participle suffix) + -iōn- noun suffix; see ac-, -ion

OTHER WORDS FROM accretion

ac·cre·tive, ac·cre·tion·ar·y, adjectivenon·ac·cre·tion, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use accretion in a sentence

British Dictionary definitions for accretion

accretion
/ (əˈkriːʃən) /

noun

Derived forms of accretion

accretive or accretionary, adjective

Word Origin for accretion

C17: from Latin accretiō increase, from accrēscere. See accrue
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for accretion

accretion
[ ə-krēshən ]

Geology The gradual extension of land by natural forces, as in the addition of sand to a beach by ocean currents, or the extension of a floodplain through the deposition of sediments by repeated flooding.
Astronomy The accumulation of additional mass in a celestial object by the drawing together of interstellar gas and surrounding objects by gravity.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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