Noun
Initialism of Companion of the Order of St Michael and St George, a British honour.
(countable) Initialism of control moment(um) gyro(scope). An attitude control mechanism.
Source: en.wiktionary.orgMembers rise from CMG (known sometimes in Whitehall as "Call Me God") to KCMG ("Kindly Call Me God") to GCMG. Anthony Sampson
A control moment gyroscope (CMG) is an example of a fixed-output-gimbal device that is used on spacecraft to hold or maintain a desired attitude angle or pointing direction using the gyroscopic resistance force. Source: Internet
CMG International Media Group has announced Kim Jayde as the host of a series of online interviews with Zimbabwean personalities in an initiative to celebrate Zimbabweans around the globe, sponsored by WorldRemit. Source: Internet
Additionally, CMG owns Cox Target Media, which operates Valpak, one of North America’s leading direct marketing companies, and Savings. Source: Internet
In 1911 Casement received a knighthood for his efforts on behalf of the Amazonian Indians, having been appointed Companion of the Order of St Michael and St George (CMG) in 1905 for his Congo work. Source: Internet
Diana Wyndham. citation Foreword by the Hon. Michael Kirby AC CMG. Source: Internet