xiphisternum
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English
Etymology
Ancient Greek ξίφος (xíphos, “sword”) + English -i- (in place of the etymologically consistent -o-) + English sternum
Pronunciation
- Rhymes: -ɜː(ɹ)nəm
Noun
xiphisternum (plural xiphisterna or xiphisternums)
- (biology, anatomy, medicine) Synonym of xiphoid process.
- 1866, W. K. Parker, “On the Osteology of Gallinaceous Birds and Tinamous”, in Transactions of the Zoological Society of London, Volume 5, Zoological Society of London, page 165:
- Hence the spaces between the forks of the hyposternum and between the hypo- and xiphisternums are relatively much smaller, and the external process of the hyposternum is twice as broad as in the common Cock.
- 1887, "Skeleton", entry in The Encyclopædia Britannica, Volume 22, 9th Edition, page 113,
- The xiphisternum may assume various forms, but attains its maximum development in Birds, where it forms the part of the sternum posterior to the attachment of the ribs, and may consist of a median and four lateral processes, as in the Fowl. It bears the greater part of the keel.
- 1968, The Histochemical Journal, Volume 2, page 425:
- Unfixed cartilage was studied. It was isolated from the xiphisterna of female Sprague-Dawley rats (150-200 g body weight) killed by cervical fracture. The xiphisternum was removed immediately at its point of attachment to the sternal column.
- 2015, Lakshmi Seshadri, Gita Arjun, Essentials of Obstetrics, Wolters Kluwer, page 107:
- Again, the distance between the umbilicus and the xiphisternum is divided into three equal parts, corresponding to 28, 32, and 36 weeks. At 36 weeks, the fundus is at the level of the xiphisternum.