Definition of Agglutination

1. Noun. A clumping of bacteria or red cells when held together by antibodies (agglutinins).

Specialized synonyms: Haemagglutination, Hemagglutination, Isoagglutination
Generic synonyms: Biological Process, Organic Process
Derivative terms: Agglutinate

2. Noun. The building of words from component morphemes that retain their form and meaning in the process of combining.
Generic synonyms: Linguistic Process
Derivative terms: Agglutinate

3. Noun. The coalescing of small particles that are suspended in solution; these larger masses are then (usually) precipitated.

Definition of Agglutination

1. n. The act of uniting by glue or other tenacious substance; the state of being thus united; adhesion of parts.

Definition of Agglutination

1. Noun. The act of uniting by glue or other tenacious substance; the state of being thus united; adhesion of parts. ¹

2. Noun. Combination in which root words are united with little or no change of form or loss of meaning. See agglutinative. ¹

3. Noun. The clumping together of red blood cells or bacteria, usually in response to a particular antibody. ¹

¹ Source:

Definition of Agglutination

1. [n -S]

Medical Definition of Agglutination

1. The clumping together of cells due to the binding of agglutinin (a protein) molecules on the surface of each cell. The clumping together of two organisms of the same species for the purpose of sexual reproduction. Often conducted by means of acarbohydrate on one organism and a protein on theother, resulting in a glycoprotein. (06 May 1997)

Agglutination Pictures


Lexicographical Neighbors of Agglutination

agglutinating activity
agglutinating antibody
agglutination test
agglutinative thrombus

Literary usage of Agglutination


1. The Journal of Experimental Medicine by Rockefeller University, Rockefeller Institute, Rockefeller Institute for Medical Research (1922)
"Whatever opinions may be held regarding the nature of the specific agglutination of bacteria it is generally agreed that the process occurs in two phases; ..."

2. Chemical Pathology: Being a Discussion of General Pathology from the by Harry Gideon Wells (1914)
"This well-known phenomenon, the clumping or agglutination of bacteria when ... Possibly agglutination favors phagocytosis and lessens dissemination of the ..."

3. A Practical Text-book of Infection, Immunity, and Specific Therapy: With by John Albert Kolmer (1915)
"(e) Of what value is the agglutination reaction in showing the biologic ... (f) How would the agglutination reaction be used in the diagnosis of an unknown ..."

4. International Medical and Surgical Surveyby American Institute of Medicine by American Institute of Medicine (1922)
"While formalin prevents spontaneous agglutination, it increases specific agglutination. Ishii used the following technic in his experiments: eighteen to ..."

"agglutination TESTS. There are two methods of testing the agglutinating powers of a seru-m—the microscopical and the macroscopical or sedimentation method. ..."

6. Pathogenic Micro-organisms: Including Bacteria and Protozoa; a Practical by William Hallock Park, Anna Wessels Williams (1910)
"See pages 42-46 for a description of the phenomenon of agglutination and the ... Thus in typhoid patients and convalescents distinct agglutination has been ..."

7. Veterinary Bacteriology: A Treatise on the Bacteria, Yeasts, Molds, and by Robert Earle Buchanan (1911)
"The antibody responsible for agglutination is called an agglutinin; ... The distinction between agglutination and precipitation may be stated as follows: ..."

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