The portion of the mediastinum extending from the pericardium to the sternum, containing the thymus gland or its remnants, lymph nodes, and blood vessels.
Origin
Late 18th century.
Definition of anterior mediastinum in US English:
anterior mediastinum
noun
Anatomy
The portion of the mediastinum extending from the pericardium to the sternum, containing the thymus gland or its remnants, lymph nodes, and blood vessels.