1
: a group of things clustered together
a clump of bushes
2
: a compact mass
3
: a heavy tramping sound
clumped; clumping; clumps
: to arrange in or cause to form clumps
Examples of clump in a Sentence
Noun
There is a clump of bushes at the edge of the field.
I could hear the clump of his footsteps as he came down the stairs.
Verb
The virus clumps the cells together.
a child clumping around the house in her father's oversized boots
Recent Examples on the Web
Carrie Madormo, Verywell Health, 6 Nov. 2025
The study included nearly 300 people who were still cognitively normal but at higher risk of developing Alzheimer’s because their brain scans showed evidence of amyloid plaques, the clumps of protein that are the hallmark of Alzheimer's.
—Alice Park, Time, 3 Nov. 2025
Jon Hamilton, NPR, 29 Oct. 2025
Navigating the world of priming serums can be a slippery slope due to heavy formulas and glitter-like ingredients that clump upon application.
—Tatayana Yomary, Essence, 21 Oct. 2025
See All Example Sentences for clump
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Noun
People with Alzheimer’s tend to have clumps of proteins called amyloid plaques that accumulate around the brain cells.
—Carrie Madormo, Verywell Health, 6 Nov. 2025
The study included nearly 300 people who were still cognitively normal but at higher risk of developing Alzheimer’s because their brain scans showed evidence of amyloid plaques, the clumps of protein that are the hallmark of Alzheimer's.
—Alice Park, Time, 3 Nov. 2025
Verb
Alzheon's product is meant to keep plaques from forming in the first place, by preventing amyloid proteins from clumping at all.
—Jon Hamilton, NPR, 29 Oct. 2025
Navigating the world of priming serums can be a slippery slope due to heavy formulas and glitter-like ingredients that clump upon application.
—Tatayana Yomary, Essence, 21 Oct. 2025
See All Example Sentences for clump
Cite this Entry
“Clump.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/clump. Accessed 12 Nov. 2025.
Copy CitationKids Definition
Medical Definition
clump
1 of 2 noun
: a clustered mass of particles (as bacteria or blood cells) compare agglutination
clump
2 of 2 intransitive verb
: to form clumps
: to arrange in or cause to form clumps
the serum clumps the bacteria
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