American Dictionary of the English Language

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PEC'TORAL, adjective [Latin pectoralis, from pectus, breast.]

Pertaining to the breast; as the pectoral muscles; pectoral medicines.

The pectoral fins of a fish are situated on the sides of the fish, behind the gills.

PEC'TORAL, noun A breastplate.

1. A sacerdotal habit or vestment worn by the Jewish high priest, called in our version of the Bible, a breastplate.

2. A medicine adapted to cure or relieve complaints of the breast and lungs.