fallen arch

noun

collapse of the arch formed by the instep of the foot, resulting in flat feet

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Medicine definitions for fallen arch

fallen arch

[fôlən]

n.

A breaking down of the longitudinal or transverse arch of the foot, resulting in flat foot or spread foot.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.