In anatomy, describes a hollow or arched structure, particularly referring to foot deformities or abnormally arched conditions (like 'pes cavus').
Latin adjective 'cavus' meaning 'hollow' or 'arched', directly applied in medical terminology to describe concave or deeply arched anatomical structures.
Someone with 'pes cavus' or high arches is walking on a fundamentally different foot structure than flat-footed people—their weight concentrates on heel and ball of foot, causing unique strain patterns doctors can actually see in gait analysis!
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