de·​lam·​i·​na·​tion (ˌ)dē-ˌla-mə-ˈnā-shən How to pronounce delamination (audio)
: separation into constituent layers
delaminate intransitive verb

Example Sentences

Recent Examples on the Web One of the more interesting hypotheses is that the behind arc (east of the arc front) volcanism is due to lithospheric detachment, often referred to as delamination, or foundering. Erik Klemetti, Discover Magazine, 21 July 2011 National Geographic reports that the design of astronauts' space suit gloves can lead to hand and finger injuries, including an icky condition called fingernail delamination in which the nail completely detaches from the nailbed. Eliza Strickland, Discover Magazine, 14 Sep. 2010 Flaws noted in the writeup include a windshield crack (covered by an adhesive sunstrip), some glass delamination, and various chips and scratches. Basem Wasef, Car and Driver, 18 Aug. 2022 For those of us who are not Oreo scientists, delamination is when something splits apart into layers. Madeline Holcombe, CNN, 19 Apr. 2022 Best of all, there’s no glue in the build, so delamination just won’t happen. Outside Online, 14 Mar. 2022 But delamination of the timbers due to poor quality glue and/or assembly can degrade their fire performance, as was seen in 2018. Louis Gritzo, Forbes, 15 Nov. 2021 Watch out for delamination on the doors and exterior roof caps too. Benjamin Hunting, Car and Driver, 8 Aug. 2021 That means no painting, cracking, delamination or peeling. cleveland, 7 Dec. 2020 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'delamination.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History

First Known Use

1877, in the meaning defined above

Time Traveler
The first known use of delamination was in 1877

Dictionary Entries Near delamination

Cite this Entry

“Delamination.” Dictionary, Merriam-Webster, Accessed 27 Jan. 2023.

Medical Definition


de·​lam·​i·​na·​tion (ˌ)dē-ˌlam-ə-ˈnā-shən How to pronounce delamination (audio)
: separation into constituent layers
: gastrulation in which the endoderm is split off as a layer from the inner surface of the blastoderm and the archenteron is represented by the space between this endoderm and the yolk mass
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