Try Our Apps
Dictionary.com

follow Dictionary.com

The Best Internet Slang

clump

[kluhmp] /klʌmp/
noun
1.
a small, close group or cluster, especially of trees or other plants.
2.
a lump or mass.
3.
a heavy, thumping step, sound, etc.
4.
Immunology. a cluster of agglutinated bacteria, red blood cells, etc.
5.
a thick extra sole on a shoe.
verb (used without object)
6.
Also, clomp. to walk heavily and clumsily.
7.
Immunology. to gather or be gathered into clumps; agglutinate.
verb (used with object)
8.
to gather or form into a clump; mass.
Origin of clump
1580-1590
1580-90; akin to Dutch klompe lump, mass, Old English clympre lump of metal
Related forms
clumpy, clumpish, clumplike, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
Cite This Source
Examples from the Web for clumping
Historical Examples
  • As she opened the squeaky screen-door he was clumping down the steps.

    In a Little Town Rupert Hughes
  • It was as musical as the clumping of a new pair of red topped boots.

    Red Head and Whistle Breeches Ellis Parker Butler
  • There was a great army of them, clumping down the road the way they do.

    Fanny Herself Edna Ferber
  • They heard a clumping step upon the staircase, and, when it reached the landing, it stopped at their door.

    The Lost Prince Frances Hodgson Burnett
  • The girl, clumping along in the boots which were much too large for her, entered a small room to one side.

  • The man was clumping slowly along in his rubber boots; an old cap was slewed awry on his head, its peak drawn down over one ear.

    Blow The Man Down Holman Day
  • They were clumping along, chattering gaily, when Katy jumped and let out a yell that could have been heard a block away.

  • This clumping is spoken of as agglutination and the substances produced in the animal are called agglutinins.

    The Fundamentals of Bacteriology Charles Bradfield Morrey
  • They must combine with the foreign cells and also bring about their clumping together, their agglutination.

    The Fundamentals of Bacteriology Charles Bradfield Morrey
  • Steps were clumping up to the garage door, and a key was at work in the padlock.

    Buff: A Collie and other dog-stories Albert Payson Terhune
British Dictionary definitions for clumping

clump

/klʌmp/
noun
1.
a cluster, as of trees or plants
2.
a dull heavy tread or any similar sound
3.
an irregular mass: a clump of hair or earth
4.
an inactive mass of microorganisms, esp a mass of bacteria produced as a result of agglutination
5.
an extra sole on a shoe
6.
(slang) a blow
verb
7.
(intransitive) to walk or tread heavily
8.
to gather or be gathered into clumps, clusters, clots, etc
9.
to cause (bacteria, blood cells, etc) to collect together or (of bacteria, etc) to collect together
10.
(transitive) (slang) to punch (someone)
Derived Forms
clumpy, adjective
clumpiness, noun
Word Origin
Old English clympe; related to Middle Dutch klampe heap of hay, Middle Low German klampeclamp², Swedish klimp small lump
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
Cite This Source
Word Origin and History for clumping

clump

n.

1580s, "lump; cluster of trees," from Middle English clompe "a lump" (c.1300), from Dutch klomp "lump, mass," or Middle Low German klumpe "clog, wooden shoe." Old English had clympre "lump, mass of metal."

clump

v.2

"walk heavily," 1660s, imitative. Related: Clumped; clumping.

clump

v.1

"to heap or gather in clumps" (transitive), 1824, from clump (n.). Related: Clumped; clumping. Intransitive sense "to form a clump or clumps" is recorded from 1896.

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
clumping in Medicine

clumping clump·ing (klŭm'pĭng)
n.
The massing together of bacteria or other cells suspended in a fluid.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source

Word of the Day

Difficulty index for clump

Most English speakers likely know this word

Word Value for clumping

15
22
Scrabble Words With Friends

Nearby words for clumping