specification specification /ˌspɛsɪfɪˈkeɪʃən/

noun

1. () A detailed description of design criteria for a piece of work  ( spec , specification )
   a detailed description of design criteria for a piece of work
   
2. A restriction that is insisted upon as a condition for an agreement  ( specification , stipulation )
   a restriction that is insisted upon as a condition for an agreement
   
3. (patent law) a document drawn up by the applicant for a patent of invention that provides an explicit and detailed description of the nature and use of an invention  ( specification )
   (patent law) a document drawn up by the applicant for a patent of invention that provides an explicit and detailed description of the nature and use of an invention
   
4. Naming explicitly  ( specification )
   naming explicitly