Definition of pectoral

• a. - Of or pertaining to the breast, or chest; as, the pectoral muscles.
• a. - Relating to, or good for, diseases of the chest or lungs; as, a pectoral remedy.
• a. - Having the breast conspicuously colored; as, the pectoral sandpiper.
• n. - A covering or protecting for the breast.
• n. - A breastplate, esp. that worn by the Jewish high person.
• n. - A clasp or a cross worn on the breast.
• n. - A medicine for diseases of the chest organs, especially the lungs.