1 the fine, soft, shiny fiber produced by silkworms to form their cocoons. 2  thread or fabric made from this fiber. 3  a garment or other article made of this fabric. 4  a distinctive silk uniform, as of a jockey.  the silk gown worn by a King's (or Queen's) Counsel in British law courts.
A prescriptive specification is one that includes clauses for means and methods of construction and composition of the concrete mix rather than defining performance requirements.he general concept of how a performance-based specification for concrete would work is as follows: There would be a qualification/certification system that establishes the requirements for a quality control management system, qualification of personnel and requirements for concrete production facilities.
preÂ·reqÂ·uiÂ·site. (prÄ-rÄkâ²wÄ­-zÄ­t) adj. Required or necessary as a prior condition: Competence is prerequisite to promotion. n. Something that is prerequisite, as a course that is required prior to taking an advanced course. prerequisite. (priËËrÉkwÉªzÉªt)