introversion
(noun)
noun
1. the condition of being folded inward or sheathed
Similar word(s): invagination
Definition categories: state, condition
2. the folding in of an outer layer so as to form a pocket in the surface
Similar word(s): infolding, intussusception, invagination
Definition categories: process
3. (psychology) an introverted disposition; concern with one's own thoughts and feelings
Definition categories: attribute, unsociability, unsociableness