Edison screw

== English == === Etymology === Edison +‎ screw. From being a screw thread coming from Edison. Named after American inventor and entrepreneur Thomas Alva Edison, whose invention factory created the first standard electric light bulb system. === Noun === Edison screw (plural Edison screws) (electrics, lighting) A standard screw thread allowing a light bulb to be screwed into its socket. (by restriction) The most common size of Edison screw ==== Synonyms ==== ==== Hyponyms ==== ==== Derived terms ====