asternaladj.

/əˈstəːnəl/Etymology: < a- prefix6 + modern Latin sternum breast-bone, < Greek στέρνον chest + -al suffix1.
Physiology.
the world > life > the body > structural parts > bone or bones > breastbone > [adjective]
1849–52 IV. i. 652/1 The asternal ribs.
This entry has not yet been fully updated (first published 1885; most recently modified version published online June 2022).