Originally, the DuPont company trade name for polyamide, a copolymer whose molecules consist of alternating diamine and dicarboxylic acid monomers bonded together; now generically used for this type of polymer.

(in the plural) A stocking originally fabricated from nylon; also used generically for any long, sheer stocking worn on a woman's legs.

(perjoratively, by comparison to silk) A Queen's Counsel, King's Counsel or Senior Counsel who was appointed as a courtesy, rather than on merit.