He likes to make music using electronic sounds.

An electron gun is a device for generating an electron beam.

I often read e-books.

He decided to quit smoking electronic cigarettes.

I bought a coffee using electronic money.

This is my unused camera.

Orthoclase is a type of mineral, mainly found in granite.

There are more than a billion quintillion stars in this galaxy.

A regular polyhedron is a polyhedron where all faces are the same shape.

The cathode of this battery is made of copper.