1. the branch of physics and technology concerned with the design of circuits using transistors and microchips, and with the behavior and movement of electrons in a semiconductor, conductor, vacuum, or gas
Usage: technical field
2. electronic devices and systems collectively

Examples

• She studied electronics in college and now designs computer chips.
• The electronics store sells televisions, computers, and smartphones.
• Modern cars rely heavily on electronics for engine control and safety features.
• He enjoys building electronics projects in his spare time.
• The electronics industry has grown rapidly over the past few decades.
• Consumer electronics have become much more affordable in recent years.