1550s, "estate manager's office," from Middle French factorie, from Late Latin factorium "office for agents (factors)," also "oil press, mill," from Latin factor "doer, maker" (see factor (n.)). Sense of "building for making goods" is first attested 1610s. Factory farm attested from 1890.
Place where what is indicated is done, pursued, used, etc •A jocular appropriation of the term: brain factory/ freak factory/ nut factory (1920s+)
nounThe apparatus used for injecting narcotics; works (1940s+ Narcotics)
Related Termsbone factory, cracker factory, joint factory, nuthouse