1. A pectoral muscle; the pectoral cavity. 
   胸肌；胸腔
2. The pelvic or pectoral girdle. 
   骨盆带或胸部带
3. cartilaginous fishes having horizontally flattened bodies and enlarged winglike pectoral fins with gills on the underside; most swim by moving the pectoral fins. 
   软骨鱼，特征是身体扁平，胸鳍大如翅膀，腮位于身体下面；游动主要靠胸鳍。
4. large edible rays having a long snout and thick tail with pectoral fins continuous with the head; swim by undulating the edges of the pectoral fins. 
   大型可食用鳐，长有长鼻子、粗尾巴和一直连到头部的胸鳍；靠有波状边缘的胸鳍游动。
5. web-footed Australian stilt with reddish-brown pectoral markings. 
   有足蹼的澳大利亚长脚鹬，胸部有红褐色的斑纹。

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