Pectoral

a.	1.	Of or pertaining to the breast, or chest; as, the pectoral muscles.
	2.	Relating to, or good for, diseases of the chest or lungs; as, a pectoral remedy.
	3.	(Zool.) Having the breast conspicuously colored; as, the pectoral sandpiper. Pectoral arch (Anat.) the two or more bony or cartilaginous pieces of the vertebrate skeleton to which the fore limbs are articulated; the shoulder girdle. In man it consists of two bones, the scapula and clavicle, on each side. Pectoral cross (Eccl.) a cross worn on the breast by bishops and abbots, and sometimes also by canons. Pectoral fins (Zool.) fins situated on the sides, behind the gills. See Illust. under Fin. Pectoral rail b - (Zool.) See Land rail (b) under Land. Pectoral sandpiper b - (Zool.) the jacksnipe (b).
n.	1.	A covering or protecting for the breast.
	2.	(Eccl.) A breastplate, esp. that worn by the Jewish high person.
	3.	A medicine for diseases of the chest organs, especially the lungs.

Noun	1.	pectoral - either of two large muscles of the chest Synonyms: musculus pectoralis, pecs, pectoral muscle, pectoralis
	2.	pectoral - an adornment worn on the chest or breast Synonyms: pectoral medallion
Adj.	1.	pectoral - of or relating to the chest or thorax; "pectoral organ" Synonyms: thoracic

chest, pectus, thoracic, thorax