[ mahy-kroh-min-ee-uh-cher, -choo r, -min-uh- ]
/ ˌmaɪ kroʊˈmɪn i ə tʃər, -ˌtʃʊər, -ˈmɪn ə- /
built on an extremely small scale, smaller than subminiature, especially of electronic equipment with small solid-state components in the place of vacuum tubes.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for microminiature
Microminiature transmitters and receivers—used by police and doctors.The Practical Values of Space Exploration|Committee on Science and Astronautics