IPA: /ˌmɪnɪtʃəraɪˈzeɪʃən/
KK: /ˌmɪniˌætʃərɪˈzeɪʃən/
The process of making something smaller in size or scale.
The miniaturization of technology has led to smaller and more efficient devices.
Miniaturization → It is formed from "miniatur-" (from Latin *miniatura*, meaning small or reduced) and "-ization" (meaning the process of making). The word "miniaturization" refers to the process of making something smaller or reducing its size.
Think of the word 'miniature' which means small, and remember that 'miniaturization' is the process of making things smaller.