- sternum, breastbone - the flat bone that articulates with the clavicles and the first seven pairs of ribs
--1 is a kind of bird genus; bone, os; bird genus; bone, os
--1 is a part of thorax, chest, pectus; axial skeleton
--1 is a member of Sterninae, subfamily Sterninae
--1 has parts: gladiolus, corpus sternum; manubrium; xiphoid process
--1 has members: sea swallow, Sterna hirundo