Nŏn-năt'ū-rals, n. pl.

n. pl. [Lat. non-naturalia. See NATURALS.] (Med.) Things which are necessary to human existence, but which do not enter into the composition or constitute the nature of man, such as air, food, drink, sleep and wakefulness, motion and rest, the retentions and excretions, and the affections of the mind. This term was used by the ancient physicians, but is now obsolete. Dunglison.