Definitions

1. noun

The breast or chest; the front part of the body between the neck and the abdomen

“The pectus was visible in the athlete’s physique.”

2. noun, anatomy

A deformity of the breastbone, characterized by a depression or protrusion of the chest wall

“The patient was diagnosed with a severe pectus excavatum.”

3. noun, medicine

A surgical procedure to correct a deformity of the breastbone

“The doctor performed a pectus repair to improve the patient’s breathing.”