nuchal /ˈnu.kəl/noun 3adjective 1forms 1 noun3 •The back of the neck. •(informal) Ellipsis of nuchal translucency scan. •A neck scale, especially of a lizard.Growth patterns of clavicles, cleithra, opercles, medial nuchals, dorsal scutes, and pectoral fin ray sections have been compared in white sturgeon Acipenser transmontanus. — 2004 adjective1 •Of or pertaining to the back or nape of the neck.Many particulars of the nuchal torus region and nuchal plane are preserved (see Caspari, 1991 for further details, our description replies heavily on Caspari's work). — 2006 formsnuchals
