nuchal adjective & noun. ['nju:k(ǝ)l] M19.
[from NUCHA + -AL¹.]
A. adjective. Anatomy. Of or pertaining to the nucha or nape of the neck. M19.
nuchal ligament the thick elastic ligament supporting the back of the skull, esp. in quadrupeds.
b. noun. Zoology. The bony plate next to the nape of the neck in the carapace of a chelonian. M19.

[TahlilGaran] English Dictionary ▲