The process or result of sticking things together; clumping of particles or cells.
From Latin agglutinatio. The -tion suffix (Latin -tio) forms abstract nouns describing the process or result of an action.
Blood agglutination reactions are so precise that they form the basis of blood typing—a single drop of blood with the right antibody creates visible clumping within seconds, a test developed in 1901 that still saves lives today.
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