medium screw base
Defined in 1 dictionary — U.S. Code
United States Code
42 U.S.C. § 6291 — for purposes of this part
The term “medium screw base” means an Edison screw base identified with the prefix E–26 in the “American National Standard for Electric Lamp Bases”, ANSI/IEC C81.61–2003, published by the American National Standards Institute.