In anatomy or medicine, a joint or articulation; also a limb or extremity, used in Latin medical terminology.
From Latin 'artus' (joint, articulation), related to 'articulare' (to join). This medical term survives in English mostly in anatomical Latin phrases.
The word 'artus' lives on invisibly in medical language—when doctors talk about 'arthritis' or 'articulation,' they're using Latin descendants of this ancient anatomical term for joints.
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