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costal

[kos-tl, kaws-tl] /ˈkɒs tl, ˈkɔs tl/
adjective
1.
Anatomy. pertaining to the ribs or the upper sides of the body:
costal nerves.
2.
Botany, Zoology. pertaining to, involving, or situated near a costa.
Origin
1625-1635
1625-35; < Medieval Latin costālis of the ribs, equivalent to Latin cost(a) rib, side + -ālis -al1
Related forms
costally, adverb
postcostal, adjective
precostal, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Word Origin and History for postcostal
costal
"pertaining to the ribs," 1630s, from Fr. costal, from Mod.L. costalis, from costa "a rib."
Online Etymology Dictionary, © 2010 Douglas Harper
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