1. A long and intricate and complicated grammatical construction
   "The professor's involution left the students confused"
    
2. Quality or state of having complex or ornate detail
   "The involution of the plot made it hard to follow";
   - elaborateness, elaboration, intricacy
    
3. Reduction in size of an organ or part (as in the return of the uterus to normal size after childbirth)
   "The involution of the uterus is an important part of postpartum recovery"
    
4. The action of enfolding something
   "The involution of the petals protected the flower's centre";
   - enfolding
    
5. (maths) an operation that is its own inverse
   "Reflection is an example of an involution in geometry"
    
6. A spiral or coiled form
   "The involution of the snail's shell"

Derived forms: involutions

Type of: biological process, change of shape, complexity, complexness, construction, expression, grammatical construction, organic process

Encyclopedia: Involution