From Wikipedia, the free encyclopedia. A subsidiary right (also called a subright or sub-lease) is the right to produce or publish a product in different formats based on the original material.
pigeon chest pectus carinatum. chest tube a tube inserted into the thoracic cavity for the purpose of removing air or fluid, or both. Chest tubes are attached to a closed drainage system (see illustration) so that normal pressures within the alveoli and the pleural cavity can be restored.
Noun. 1. mediastinum-the part of the thoracic cavity between the lungs that contains the heart and aorta and esophagus and trachea and thymus. bodily cavity, cavum, cavity - (anatomy) a natural hollow or sinus within the body.. the area in the chest that lies between the lungs, is bounded by the sternum, the spinal column, and the diaphragm, and contains the heart, esophagus, trachea, and other thoracic structures. mediastÄ«nus middle class, derivative of Latin medius mid 1 ].