noun a clasp or a cross worn on the breast.
2. pectoral ·noun a covering or protecting for the breast.
3. pectoral ·noun a breastplate, ·esp. that worn by the jewish high person.
4. pectoral ·noun a medicine for diseases of the chest organs, especially the lungs.
5. pectoral ·adj of or pertaining to the breast, or chest; as, the pectoral muscles.
6. pectoral ·adj having the breast conspicuously colored; as, the pectoral sandpiper.
7. pectoral ·adj relating to, or good for, diseases of the chest or lungs; as, a pectoral remedy.