Simple Definition of accretion
: a gradual process in which layers of a material are formed as small amounts are added over time
: something that has grown or accumulated slowly : a product or result of gradual growth
Full Definition of accretion
1 : the process of growth or enlargement by a gradual buildup: 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>
Examples of accretion
rocks formed by the slow accretion of limestone
There was an accretion of ice on the car's windshield.
Origin of accretion
Latin accretion-, accretio, from accrescere — more at accrue
First Known Use: 1615
Medical Definition of accretion
Learn More about accretion
Thesaurus: All synonyms and antonyms for "accretion" Medical Dictionary: Definition of "accretion" Spanish Central: Translation of "accretion" Nglish: Translation of "accretion" for Spanish speakers Britannica English: Translation of "accretion" for Arabic speakers Britannica.com: Encyclopedia article about "accretion"
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