Short for electronic. A prefix indicating that a word refers to the computer-based version of some traditionally nonelectronic term, as e-mail, e-commerce, and e-money.
Abbreviation for east.
The symbol for the base of the natural logarithm 2.71828. Introduced by Leonhard Euler in the mid-eighteenth century, e is a fundamental mathematical constant used in calculus, science, engineering, and programming languages, as in logarithmic and exponential functions in C and Basic.
The base of the natural system of logarithms; SYN. 2.718282..
Second vowel and fifth and most often used letter of the English alphabet.
The third tone of a C-major scale.