koilorachic

adjective
koi·lo·rach·ic
variants: or koilorrhachic \¦kȯilō¦rakik, -lə¦- \

Definition of koilorachic 

: having the lumbar region of the spinal column concave ventrally

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History and Etymology for koilorachic

koilo- (from Greek koilos hollow) + rach-, rrhach- (from Greek rhachis spine) + -ic

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