Relating to or exhibiting a tendency to affect joints, or describing organisms or substances that show attraction or movement toward joints.
From Greek 'arthron' (joint) + '-tropic' (from 'tropos' meaning turn or direction, from 'trepein' to turn). The '-tropic' suffix indicates direction, movement, or tendency, as in heliotropic or psychotropic.
Some bacteria are 'arthrotropic'—they specifically target joints during infection, which is why certain infections like Lyme disease cause joint pain specifically, showing how pathogens can be surprisingly selective about where they attack your body.
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