IPA: /ˌmaɪ.kroʊ.ɪˈlɛk.trɒ.nɪk/
KK: /maɪkroʊˌɛlɛkˈtrɒnɪk/
Related to the branch of electronics that deals with very small components and circuits, often at the microscopic level.
The microelectronic devices in our smartphones are essential for their performance.
A small electronic component or device that is made using microfabrication techniques, often found in computers and other electronic systems.
The new smartphone features advanced microelectronic technology for better performance.
Microelectronic → It is formed from "micro-" (from Greek "mikros", meaning small) and "electronic" (from Greek "ēlektron", meaning amber, which is associated with electricity). The word "microelectronic" refers to the small-scale electronic components and systems.
Think of 'small' ('micro-') components related to 'electricity' ('electronic') — that's what microelectronic means.