The Oxford Thesaurus An A-Z Dictionary of Synonyms - specificationn.

1) identification, identifying, description, describing, particularization, particularizing, specifying, naming: The police were relying on a specification of the ringleaders by an informer. 2) itemization, itemizing, list, listing, check-list, inventory, list of particulars, detail, enumeration: When can you let me have the specifications for the new building? 3 requirement, qualification, condition, restriction, stipulation, consideration: The specification called for green marble and no substitute.