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a condition in which one or more arches of the foot have flattened out; called also pes planus, pes valgus, platypodia, and tarsoptosis.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
tarsoptosis(tăr″sŏp-tō′sĭs) [″ + ptosis, falling]
Flatfoot; fallen arch of the foot.
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