[uh-gloot-n-ey-shuh n]


the act or process of uniting by glue or other tenacious substance.
the state of being thus united; adhesion of parts.
that which is united; a mass or group cemented together.
Immunology. the clumping of bacteria, red blood cells, or other cells, due to the introduction of an antibody.
Linguistics. a process of word formation in which morphemes, each having one relatively constant shape, are combined without fusion or morphophonemic change, and in which each grammatical category is typically represented by a single morpheme in the resulting word, especially such a process involving the addition of one or more affixes to a base, as in Turkish, in which ev means “house,” ev-den means “from a house,” and ev-ler-den means “from houses.”

Origin of agglutination

First recorded in 1535–45; agglutinate + -ion
Related formsan·ti·ag·glu·ti·na·tion, adjectivein·ter·ag·glu·ti·na·tion, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for agglutination

Historical Examples of agglutination

  • It gives many openings for theories of agglutination and adulteration.

  • Thidreks Saga is not an epic, though it is made by an agglutination of ballads.

  • Accretion by chemical precipitations, by welding, by pressure, by agglutination.

    Zoonomia, Vol. I

    Erasmus Darwin

  • Having utilized the technic devised by Teague, I have had no difficulty in performing the agglutination test in plague.


    Thomas Wright Jackson

  • Agglutination or aggregation is carried to its widest extent, and words of inordinate length are not uncommon.

British Dictionary definitions for agglutination



the act or process of agglutinating
the condition of being agglutinated; adhesion
a united mass or group of parts
chem the formation of clumps of particles in a suspension
biochem proteinaceous particles, such as blood cells and bacteria, that form clumps in antibody–antigen reactions
immunol the formation of a mass of particles, such as erythrocytes, by the action of antibodies
linguistics the building up of words from component morphemes in such a way that these undergo little or no change of form or meaning in the process of combination
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

Word Origin and History for agglutination

1540s, from Latin agglutinationem (nominative agglutinatio), noun of action from past participle stem of agglutinare "fasten with glue," from ad- "to" (see ad-) + glutinare "to glue," from gluten "glue," from PIE *glei- (see glue (n.)). Philological sense first recorded 1650s, in agglutinative.

Online Etymology Dictionary, © 2010 Douglas Harper

agglutination in Medicine




The act or process of agglutinating.
The clumping together of red blood cells or bacteria, usually in response to a particular antibody.
A clumped mass of material formed by agglutination.agglutinate
Adhesion of wound surfaces in healing.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

agglutination in Science



The clumping together of biologic material, such as red blood cells or bacteria, that is suspended in liquid, usually in response to a particular antibody.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.