# Rubisco

> English word · Noun · IPA /ruːˈbiskoʊ/

## Definitions
1. An enzyme (ribulose-1,5-bisphosphate carboxylase oxygenase) which catalyzes both the fixing of atmospheric carbon dioxide during photosynthesis (and for a few chemioautotrophic bacteria) and the reverse process of photorespiration.

## Etymology
From RuBisCO

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/rubisco