Definitions for e-commerceˈiˌkɒm ərs
Random House Webster's College Dictionary
business that is transacted by transferring data electronically, esp. on the Internet.
Origin of e-commerce:
Kernerman English Learner's Dictionary
e-commerce(noun)ɪˈkɒl ə dʒi
business that is carried out on the Internet
Commercial activity conducted via the Internet.
Origin: Shortened form of electronic commerce.