[mahy-kroh-in-struhk-shuh n] /ˌmaɪ kroʊ ɪnˈstrʌk ʃən/
an that defines part of a machine-language in terms of simpler operations.
(computing) an instruction produced within an arithmetic and logic unit in accordance with a microprogram, that activates a particular circuit to perform part of the operation specified by a machine instruction
1959, from micro- + instruction.
microinvasion mi·cro·in·va·sion (mī’krō-ĭn-vā’zhən) n. Invasion of in situ carcinoma into tissue that is immediately adjacent, being the earliest stage of malignant neoplastic invasion.
/ˈmaɪkrəʊˌdʒɛt/ noun 1. a light jet-propelled aircraft
operating system An approach to operating system design emphasising small modules that implement the basic features of the system kernel and can be flexibly configured. (1999-08-02)
[mahy-kruh-les-i-thuh l] /ˌmaɪ krəˈlɛs ɪ θəl/ adjective, Embryology. 1. having a small amount of yolk, as certain eggs or ova.