Plural of circulus; the Latin plural of circle, used in anatomical and scientific terminology.
Direct from Latin 'circuli,' the nominative plural of 'circulus.' This form persists in modern scientific nomenclature, especially in anatomy where Latin terminology is preserved for precision.
In anatomy, the 'circuli articulares' are circular grooves around joints, and using the Latin plural 'circuli' keeps the terminology consistent with other Latin anatomical terms like 'fungi' or 'nuclei.' It's scientese that helps doctors be precise.
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