adhesion
noun
ad·he·sion
ad-ˈhē-zhən 
əd-
1
: steady or firm attachment : adherence
2
: the action or state of adhering
3
: the abnormal union of separate tissue surfaces by new fibrous tissue resulting from an inflammatory process
also
: the newly formed uniting tissue
4
: agreement to join
adhesion of all nations to a copyright convention
5
: the molecular attraction exerted between the surfaces of bodies in contact
Examples of adhesion in a Sentence
the adhesion of the coating
the adhesion of the mud to my shoes
Recent Examples on the Web
These bilayers were covalently bonded via secondary UV curing, ensuring strong interfacial adhesion and stability over 100 actuation cycles.
—
Jijo Malayil, Interesting Engineering, 26 Oct. 2025
The gears rotated freely without post-processing, showing even extrusion and stable layer adhesion.
—PC Magazine, 24 Oct. 2025
These footprints are rich in F-actin, a structural protein, and other adhesion proteins.
—New Atlas, 16 Oct. 2025
Upon reviewing the affected vehicles, Ford learned that the door trim in the qualifying vehicles was applied without the use of hand rollers, which helped operators ensure complete adhesion, per the recall report.
—Greta Cross, USA Today, 19 Sep. 2025
See All Example Sentences for adhesion
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Jijo Malayil, Interesting Engineering, 26 Oct. 2025
The gears rotated freely without post-processing, showing even extrusion and stable layer adhesion.
—PC Magazine, 24 Oct. 2025
These footprints are rich in F-actin, a structural protein, and other adhesion proteins.
—New Atlas, 16 Oct. 2025
Upon reviewing the affected vehicles, Ford learned that the door trim in the qualifying vehicles was applied without the use of hand rollers, which helped operators ensure complete adhesion, per the recall report.
—Greta Cross, USA Today, 19 Sep. 2025
See All Example Sentences for adhesion
Cite this Entry
“Adhesion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/adhesion. Accessed 4 Nov. 2025.
Copy CitationKids Definition
adhesion
noun
ad·he·sion
ad-ˈhē-zhən
əd-
1
: steady or firm attachment
especially
: a sticking together
2
: abnormal union of tissues following inflammation (as after surgery)
3
: the molecular attraction between surfaces of bodies in contact
Medical Definition
adhesion
noun
ad·he·sion
ad-ˈhē-zhən, əd-
1
: the action or state of adhering
specifically
: a sticking together of substances (as of glue and wood or of parts united by growth)
2
a
: the abnormal union of surfaces normally separate by the formation of new fibrous tissue resulting from an inflammatory process
also
: the newly formed uniting tissue
pleural adhesions
b
: the union of wound edges especially by first intention
3
: the molecular attraction exerted between the surfaces of bodies in contact compare cohesion sense 2
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