xiphisternum

[zif-uh-stur-nuh m] /ˌzɪf əˈstɜr nəm/
noun, plural xiphisterna
[zif-uh-stur-nuh] /ˌzɪf əˈstɜr nə/ (Show IPA). Anatomy
1.
the lowermost of the three segments of the sternum.
Compare gladiolus (def 2), manubrium (def 2a).
Origin
1855-60; < Neo-Latin xiphi- (combining form of Greek xíphos sword) + sternum sternum
Related forms
xiphisternal, adjective
British Dictionary definitions for xiphisternum

xiphisternum

/ˌzɪfɪˈstɜːnəm/
noun (pl) -na (-nə)
1.
(anatomy, zoology) the cartilaginous process forming the lowermost part of the breastbone (sternum) Also called xiphoid, xiphoid process
xiphisternum in Medicine

xiphisternum xiph·i·ster·num (zĭf'ĭ-stûr'nəm)
n.
See xiphoid process.

xiph'i·ster'nal adj.