The condition of being folded inward or sheathed.

synonym: invagination.

Roget 218: inversion, eversion, subversion, reversion, retroversion, introversion; contraposition etc. 237^†; contrariety etc. 14; reversal; turn of the tide.    overturn; somersault, somerset; summerset^†; culbute^†; revulsion; pirouette.    transposition, transposal^†, anastrophy^†, metastasis, hyperbaton^†, anastrophe^†, hysteron proteron [Gr.], hypallage^†, synchysis^†, tmesis^†, parenthesis; metathesis; palindrome.    pronation and supination [Anat.].    ... show more

The folding in of an outer layer so as to form a pocket in the surface.

synonyms: infolding, intussusception, invagination.

Dutch: instulping

psychology An introverted disposition; concern with one's own thoughts and feelings.

Polish: introwersja, introwertyzm, introwertywność