Obs. rare. [ad. mod.L. extrāversiōn-em, f. L. extrā outwards + versiōn-em, n. of action f. vertĕre to turn: see EXTROVERSION.] A turning out; a rendering manifest.
a. 1691. Boyle, Imperfect. Doctr. Qual., vii. The supposed extraversion or intraversion of sulphur.
1692–1732. Coles, Extraversion, a turning ones thoughts upon outward objects.
[1753. Chambers, Cycl. Supp., Extraversio in chemistry, a term used to express the rendering manifest any thing saline, alcaline, or acid, concealed in mixed bodies.]
