To cause agglutination; to make things stick or clump together through the action of agglutinins.
From agglutinin + -ize (Greek -izein) verb-forming suffix. Creates a verb form meaning 'to cause agglutination.'
When a pathogen agglutinizes blood cells, it's literally weaponizing the body's own stickiness—some parasites and toxins hijack this process to destroy tissues, which is why agglutinization is monitored as a sign of serious infection.
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