The Oxford English Dictionary recently included the word e-reader with...
E-Reader According to the Oxford English Dictionary
By Silvio Lorusso, June 13, 2013
The Oxford English Dictionary recently included the word e-reader with the following meanings: It can denote a person who reads electronic texts (this sense dates from 1995) or a hand-held electronic device used for reading e-books or other text in digital form (1999). Source: http://blog.oxforddictionaries.com/2013/06/oed-june-2013-update/