"pertaining to the spinal cord," 1835, medical Latin, from nucha "spinal cord" (c.1400), from Medieval Latin nucha, from Arabic nukha "spinal marrow."
- nuchal ligament,
- nuchal plane,
Examples from the Web for nuchal
Nuchal: Width of anterior margin, 12 (estimated); greatest width, 37 (estimated); length at midline, 35 (estimated).A New Extinct Emydid Turtle from the Lower Pliocene of Oklahoma|Edwin C. Galbreath
It has no nuchal spine, and no trace of paired fins is preserved.A Guide to the Study of Fishes, Volume 1 (of 2)|David Starr Jordan
In Octopoda there is no nuchal cartilage, but two band-like “dorsal cartilages.”
Most animals have a conspicuous Cinnamon patch on the nuchal region.Speciation in the Brazilian Spiny Rats|Joo Moojen
The marginal rim is widest at the posterior end of the carapace and lacking in the nuchal area.