pectoral

from The American Heritage® Dictionary of the English Language, 5th Edition.

• adjective Relating to or situated in the breast or chest.
• adjective Useful in relieving disorders of the chest or respiratory tract.
• adjective Worn on the chest or breast.
• noun Any of four muscles that occur in pairs on each side of the chest.
• noun A pectoral fin.
• noun A medicine for relieving disorders of the chest or respiratory tract.
• noun An ornament or decoration worn on the chest.

from The Century Dictionary.

• Of, pertaining to, or connected with the breast or chest; thoracic: as, a pectoral muscle, vessel, nerve, etc.; a pectornl limb.
• In entomology, pertaining to the pectus or lower surface of the thorax.
• noun Armor for the breast, excluding the throat and the lower part of the body.
• noun An ornament to be worn on the breast; especially, an ornament of an unfamiliar sort, or of a sort to which no special name is given: as an enameled pectoral.
• noun Eccles.: In the anc. Jewish ritual, a sacerdotal breastplate of richly colored and embroidered cloth, worn by the high priest.
• noun In the Roman Catholic Church, a square plate of gold, silver, or embroidery, either jeweled or enameled, formerly worn on the breast over the chasuble by bishops during the celebration of the mass.
• noun A pectoral cross.
• noun A food, a drink, or a drug supposed to be good for persons having weak lungs.
• noun A pectoral part or organ.
• Figuratively, proceeding from the breast, as of the heart; from the inner consciousness.

from the GNU version of the Collaborative International Dictionary of English.

• noun A covering or protecting for the breast.
• noun A breastplate, esp. that worn by the Jewish high person.
• noun A clasp or a cross worn on the breast.
• noun A medicine for diseases of the chest organs, especially the lungs.
• adjective Of or pertaining to the breast, or chest.
• adjective Relating to, or good for, diseases of the chest or lungs.
• adjective (Zoöl.) Having the breast conspicuously colored.
• adjective (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.
• adjective (Eccl.) a cross worn on the breast by bishops and abbots, and sometimes also by canons.
• adjective (Zoöl.) fins situated on the sides, behind the gills. See Illust. under Fin.
• adjective (Zoöl.) See Land rail (b) under Land.
• adjective (Zoöl.) the jacksnipe (b).

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective Of or pertaining to the breast, or chest; as, the pectoral muscles.
• adjective Relating to, or good for, diseases of the chest or lungs; as, a pectoral remedy.
• adjective zoology Having the breast conspicuously colored; as, the pectoral sandpiper.
• noun Protective armor for a horse's breast.
• noun A covering or protecting for the breast.
• noun ecclesiastical A breastplate, especially that worn by the Jewish high person.
• noun ecclesiastical A clasp or a cross worn on the breast.
• noun A medicine for diseases of the chest organs, especially the lungs.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun either of two large muscles of the chest
• noun an adornment worn on the chest or breast
• adjective of or relating to the chest or thorax