▪ I. inion1 Anat.
(ˈɪnɪən)
[a. Gr. ἰνίον nape of the neck.]
A ridge of the occiput; spec. the external occipital protuberance.
| [1811 Hooper Med. Dict., Inion, the occiput. Blancard says it is the beginning of the spinal marrow: others say it is the back part of the neck.] 1814 [see inial]. 1866 Huxley Preh. Rem. Caithn. 120 The superior scale of the occiput is full, rounded, and prominent; the inion more pronounced than usual in this class of dolichocephalic skulls. 1878 Bartley tr. Topinard's Anthrop. ii. ii. 234. |
▪ II. inion2
dial. form of onion.