What is "pes cavus"

n. a deformity of the foot characterized by an abnormally high arch and hyperextension of the toes which gives the foot the appearance of a claw [syn: clawfoot]

Pes cavus (in medical terminology, also high instep, high arch, talipes cavus, cavoid foot, and supinated foot type) is a human foot type in which the sole of the foot is distinctly hollow when bearing weight. That is, there is a fixed plantar flexion of the foot. A high arch is the opposite of a flat foot and is somewhat less common.