1. The condition of being folded inward or sheathed
   - invagination 
2. The folding in of an outer layer so as to form a pocket in the surface
   - invagination, intussusception, infolding 
3. (psychology) an introverted disposition; concern with one's own thoughts and feelings

Derived forms: introversions

See also: introversive, introvert, introvertive

Type of: biological process, condition, organic process, unsociability, unsociableness

Antonym: ambiversion, extraversion

Encyclopedia: Introversion

• genus Sphagnum
• genus Sphecius
• genus Sphecotheres
• genus Spheniscus
• genus Sphenodon
• genus Sphyraena
• genus Sphyrapicus
• genus Sphyrna
• genus Spilogale
• genus Spinacia
• genus Spinus
• genus Spiraea
• genus Spiranthes
• genus Spirillum
• genus Spirochaeta
• genus Spirodela
• genus Spirogyra
• genus Spirula
• genus Spizella
• genus Spodoptera
• genus Spondias
• genus Sporobolus
• genus Spraguea
• genus Spyeria
• genus Squalus