Breastbone
This page is the CodyCross answer for the clue below from Circus, Group 90, Puzzle 5 (Artistic Cycling).
Question is: Breastbone
and the answer is: STERNUM
Word Meaning:
STERNUM — (anatomy) The breastbone, consisting of the manubrium, gladiolus, and xiphoid process.
Definitions from Wiktionary.