A dictionary of electronics and electrical engineering/ editors Andrew J. Butterfield, John Szymanski.

"This dictionary was first published in 1979 as the Penguin dictionary of electronics and ran to four editions under that title. This new edition for Oxford University Press has been thoroughly updated throughout and . . . substantially expanded to cover a number of rapidly developing fields that have become central to electronics in the twenty-first century . . . . digital systems, modern communications engineering, audio technology, and optoelectronics. . . we have added more than 700 new entries on subjects ranging from robotics and nanotechnology to microwave systems and image processing" -- Second preliminary page.

Online edition available, updated three times yearly.