- noun a conversation, chat. Usually heard in the phrase to ‘have a mag with someone’. This sense of the word was first recorded in England in the 18th century and is said to be derived from ‘magpie’ as a synonym for or an evocation of chatter.
- acronym formaximum available gain
(written as MAG)
- The gain provided by a circuit or device whose input and output impedances are optimally matched to source and load. Its abbreviation is MAG.