modification

 
Pronunciation: /ˌmɒdɪfɪˈkeɪʃ(ə)n/

noun

[mass noun]
  • the action of modifying something: the parts supplied should fit with little or no modification
  • [count noun] a change made: a number of modifications are being carried out to the engines

Origin:

late 15th century (in Scots law, denoting the assessment of a payment): from French, or from Latin modificatio(n-), from modificare (see modify)