e-book即Electronic Book在牛津郎文等英英字典里的英文解释

朗文：
e-book [countable]
TD
electronic book
a book that you read on a computer screen or on a special small computer that you can hold in your hands,and that is not printed on paper
我查了家里的牛津双解,没有e-book这个entry

刚翻完朗文英英字典,里面是这样解释e-book的
e-book:A book that you read on a computer screen or on a special small computer that you can hold in your hands,and that is not printed on paper.