In 7 also conarion. [mod.L. a. Gr. κωνάριον, dim. of κῶνος pinecone.] The pineal gland of the brain (held by Descartes to be the seat of the soul).
1656. H. More, Antid. Ath., I. xi. (1712), 33. Is it [the Spirits] themselves, or the Brain, or that particular piece of the Brain they call the Conarion or Pine-kernel?
1667. G. C., in H. Mores Div. Dial., Pref. (1713), 12. This little sprunt Champion, called the Conarion, (or Nux pinea) within which the Soul is entirely cooped up.
172751. Chambers, Cycl., Conarion or conoides Des Cartes takes occasion to suppose it the immediate place or seat of the soul.
1840. G. Ellis, Anat., 45. The pineal body or conarium, of a greyish colour, is conical in form.
1860. Mahaffy, Descartes, 177. The soul must be brought into contact with the body in the conarium, or pineal gland.