from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A cell organelle containing enzymes, such as catalase and oxidase, that catalyze the production and breakdown of hydrogen peroxide.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An intracellular organelle found in all eukaryotes (except Archezoa) which is the source of the enzymes that catalyze the production and breakdown hydrogen peroxide, and are responsible for the oxidation of long-chain fatty acids.
peroxi(de) + -some3.(American Heritage® Dictionary of the English Language, Fourth Edition)