Definition of "cleanroom"

A room or environment that is controlled in such a way as to minimize airborne particulate matter, typically for the purpose of fabricating sensitive electronic or other devices.  examples

(attributive, chiefly computing) The method of copying a design by reverse engineering and then recreating it without infringing any copyrights.  examples

(software engineering, attributive) Being or relating to a software development process intended to produce software with a certifiable level of reliability.  examples

(chiefly computing) To copy (a design) by reverse engineering and then recreating it without infringing any copyrights.  quotations  examples