Definition of Modification

Noun: modification  ,mó-du-fi'key-shun

1. The act of making something different (as e.g. the size of a garment)
   - alteration, adjustment
    
2. Slightly modified copy; not an exact copy
   "a modification of last year's model"
    
3. The grammatical relation that exists when a word qualifies the meaning of the phrase
   - qualifying, limiting
    
4. An event that occurs when something passes from one state or phase to another
   "the neighbourhood had undergone few modifications since his last visit years ago";
   - change, alteration

See also:
modifiable
modifications