Relating to both the ribs and the abdomen, or connecting structures of the ribcage to abdominal structures.
From Latin 'costa' (rib) combined with 'abdominal' from Latin 'abdomen' (belly). This is a modern anatomical term created by combining two established medical/Latin terms to describe relationships between body regions that were increasingly studied separately in modern medicine.
Medical terminology creates words like 'costoabdominal' by stacking Latin roots like building blocks—doctors can describe exactly which parts of the body connect without wordy explanations, making complex anatomy precise and efficient.
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