Describing a substance or cell that causes its own clumping or sticking together.
From 'auto-' (self), 'agglutinate' (to glue together, from Latin 'agglutinare'), and the present participle '-ing'. This is a medical and immunological term.
Some bacteria are autoagglutinating, meaning they naturally stick to themselves in clumps—this is why certain infections develop biofilms that are harder for your immune system to fight.
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