電動 (dendō) means “electrically powered”

More examples

この自転車は電動なので、坂道でも楽に走れます。ko no ji ten sha wa den dō na no de saka michi de mo raku ni hashi re ma su

This bicycle is electrically powered, so it can climb hills easily.

Uses electricity as the source of power that makes a machine or device move.

電動式dendōshiki: A type of machine or device that moves by using an electric motor.

電気を動力として機械などが動くこと。den ki o dō ryoku to shi te ki kai na do ga ugo ku ko to

The Sino-Japanese compound 電動 (dendō) combines 電 (den, "electricity") and 動 (dō, "movement").

In everyday English, 電動自転車 (dendō jitensha) is usually called an electric bike, while "electrically powered" sounds more technical or descriptive.