'Pectoral girdle' definitions:

Definition of 'pectoral girdle'

noun

A skeletal support to which the forelimbs of vertebrates are attached

From: GCIDE

Pectoral \Pec"to*ral\ (p[e^]k"t[-o]*ral), a. [L. pectoralis, fr. pectus, -oris the breast; cf. F. pectoral.]
1. Of or pertaining to the breast, or chest; as, the pectoral muscles. [1913 Webster]
2. Relating to, or good for, diseases of the chest or lungs; as, a pectoral remedy. [1913 Webster]
3. (Zool.) Having the breast conspicuously colored; as, the pectoral sandpiper. [1913 Webster]
Pectoral arch, or Pectoral girdle (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, or Pectorals (Zool.), fins situated on the sides, behind the gills. See Illust. under Fin.
Pectoral rail. (Zool.) See Land rail (b) under Land.
Pectoral sandpiper (Zool.), the jacksnipe (b) . [1913 Webster]