DEI's a three-letter acronym. It may refer to one of the following:*DEI (Greek national electrical company) FIFA Trigramme for Dutch East Indies Dale Earnhardt, Inc., a current NASCAR team Dynamic Electroluminescence Imaging, real-time imaging of electronic components DEI, Dayalbagh Educational Institute, university in Agra, India DEI (Dabney Eats It), the lounge in Dabney House at Caltech. Also serves as Dabney House's motto. Destroy Erase Improve, a 1995 album by Swedish heavy metal band… (More on Dei)