[pec.to.ral] n (15c): something worn on the breast
[2]pectoral adj [MF or L; MF, fr. L pectoralis, fr. pector-, pectus breast; akin to Toch A passam breasts, OIr ucht breast] (1578) 1: of, situated in or on, or worn on the chest
2: coming from the breast or heart as the seat of emotion