microminiaturized
adjective
mi·cro·min·i·a·tur·ized ˌmī-krō-ˈmi-nē-ə-chə-ˌrīzd 
-ˈmi-ni-chə-,
-ˈmin-yə-chə-,
-ˌtyu̇-,
-ˌtu̇-
: reduced to or produced in a very small size and especially in a size smaller than one considered miniature
Word History
First Known Use
1959, in the meaning defined above