[ verb uh-gloot-n-eyt; adjective uh-gloot-n-it, -eyt ]
/ verb əˈglut nˌeɪt; adjective əˈglut n ɪt, -ˌeɪt /

verb (used with or without object), ag·glu·ti·nat·ed, ag·glu·ti·nat·ing.

to unite or cause to adhere, as with glue.
Immunology. to clump or cause to clump, as bacteria or blood platelets.
Linguistics. to form by agglutination.


united by or as by glue.

Origin of agglutinate

1535–45; < Latin agglūtinātus (past participle of agglūtināre), equivalent to ag- ag- + glūtin- (stem of glūten glue) + -ātus -ate1

Related forms

ag·glu·tin·a·bil·i·ty [uh-gloot-n-uh-bil-i-tee] /əˌglut n əˈbɪl ɪ ti/, nounag·glu·tin·a·ble, adjectivein·ter·ag·glu·ti·nate, verb (used without object), in·ter·ag·glu·ti·nat·ed, in·ter·ag·glu·ti·nat·ing.non·ag·glu·ti·nat·ing, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for agglutinate

British Dictionary definitions for agglutinate


verb (əˈɡluːtɪˌneɪt)

to adhere or cause to adhere, as with glue
linguistics to combine or be combined by agglutination
(tr) to cause (bacteria, red blood cells, etc) to clump together

adjective (əˈɡluːtɪnɪt, -ˌneɪt)

united or stuck, as by glue

Derived Forms

agglutinability, nounagglutinable, adjectiveagglutinant, adjective

Word Origin for agglutinate

C16: from Latin agglūtināre to glue to, from gluten glue
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

Medicine definitions for agglutinate


[ ə-glōōtn-āt′ ]


To clump together; undergo agglutination.
To cause substances, such as bacteria, to clump together.


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