n.1 the act or an instance of specifying; the state of being specified.
2 (esp. in pl.) a detailed description of the construction, workmanship, materials, etc., of work done or to be done, prepared by an architect, engineer, etc.
3 a description by an applicant for a patent of the construction and use of his invention.
4 Law the conversion of materials into a new product not held to be the property of the owner of the materials.
Etymology: med.L specificatio (as SPECIFY)