# opcode

> English word · Noun

## Definitions
1. A mnemonic used to refer to a microprocessor instruction in assembly language.

## Etymology
From op + code (in sense of operation).

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/word/opcode