1. The doubling of a word or phrase (as for rhetorical effect)
   "The poet used gemination in the line 'Alone, alone, all, all alone'"
    
2. The act of copying or making a duplicate (or duplicates) of something
   "this kind of gemination is wasteful";
   - duplication

Derived forms: geminations

Type of: copying, repetition

Encyclopedia: Gemination