archest

Main Entry: arch
Pronunciation: 'ärch
Function: noun
1 : an anatomical structure that resembles an arch in form or function: as a : either of two vaulted portions of the bony structure of the foot that impart elasticity to it: (1) : a longitudinal arch supported posteriorly by the basal tuberosity of thecalcaneus and anteriorly by the heads of the metatarsal bones (2) : a transverse arch consisting of the metatarsals and first row of tarsals and resulting from elevation of the centralanterior portion of the median longitudinal arch b : ARCH OF THE AORTA
2 : afingerprint in which all the ridges run from side to side and make no backward turn

arch (ärch)
n.
An organ or structure having a curved or bowlike appearance, especially either of two arched sections of the bony structure of the foot.