Longman Dictionary of Contemporary English homepage

modification

 noun
     
mod‧i‧fi‧ca‧tion
1 [countable] a small change made in something such as a design, plan, or system
modification to
We've made one or two modifications to the original design.
They have used the same process for almost 50 years with only minor modifications.
2 [uncountable and countable] the act of modifying something, or the process of being modified
modification of
The review resulted in the modification of our security procedures.
modification in
Knowledge of the ill effects of tobacco has led to a modification in smoking behaviour.
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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