/ ˌspesɪfɪˈkeɪʃn; NAmE / noun
[ C , U ] a detailed description of how sth is, or should be, designed or made :
the technical specifications of the new model (= of car)
The house has been built exactly to our specifications .
The office was furnished to a high specification .
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WORD ORIGIN
late 16th cent.: from medieval Latin specificatio(n-) , from late Latin specificare , from Latin species appearance, form, beauty , from specere to look.