The separation or disconnection of joints or articulated parts, particularly in anatomy or surgery; separating bones at their joints.
Prefix 'de-' (meaning to separate/remove) combined with 'articulation' (from Latin 'articulare' meaning to divide into joints, from 'articulatus' meaning jointed).
Surgeons use 'dearticulation' when they must separate joints during amputation—it's more precise than just cutting through, as they carefully disconnect the ball-and-socket joints to preserve maximum functional limb length.
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