noun, verb ·3 syllables ·Rare ·Advanced level

Definitions

Noun

1. 1
   The collective microprograms in a CPU, used to run machine instructions. uncountable, usually
2. 2
   (computer science) coded instructions that are stored permanently in read-only memory wordnet

Verb

1. 1
   To write or rewrite (program instructions) in microcode, typically to optimize performance. transitive

Synonyms

All synonyms

firmwarefirmware

Etymology

From micro- + code.

Related phrases

machine instruction

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.