1. muscles located between the ribs that help with breathing
Usage: anatomy; usually plural

Examples

• The intercostals contract during inspiration to expand the chest cavity.
• Damage to the intercostals can make breathing difficult.
• Physical therapists often work on strengthening the intercostals after chest injuries.
• The intercostals are essential for proper respiratory function.
• Athletes sometimes strain their intercostals during intense training.
• The doctor examined the patient’s intercostals for signs of injury.