Word Study
intercostal
CIDE DICTIONARY
intercostal, a.
Between the ribs; pertaining to, or produced by, the parts between the ribs; as, intercostal respiration, in which the chest is alternately enlarged and contracted by the intercostal muscles. [1913 Webster]
OXFORD DICTIONARY
intercostal, adj. between the ribs (of the body or a ship).
Derivative
intercostally adv.
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