1) Manubrium 2) Manubrium of sternum 
• (n.) A median bone connected with the sternum, in many vertebrates; the interclavicle. • (n.) Same as Epiplastron. • (n.) One of the lateral pieces next to the sternum in the thorax of insects.
The anterior part of the side wall of any of the three thoracic segments.
Ep`i·ster'num noun ; plural Episterna . [ New Latin See Epi- , and Sternum .] 1. (Anat.) (a) A median bone connected with the sternum, in many vertebrates; the interclavicle. (b) Same as Epiplastron . 2. (Zoology)...
Type: Term Pronunciation: ep′i-ster′nŭm Synonyms: manubrium of sternum
manubrium. · the anterior portion of a pleuron.