A / ātlantĭon
noun greek

ātlantĭon

gen. ii · gender neuter · decl. 2nd
the lowest vertebra of the neck •
the lowest vertebra of the neck (so called because on it rests the whole burden of the head and the remaining vertebrae of the neck): hunc spinae articulum sive nodum Atlantion vocant, Plin. 28, 8, 27, § 99.