peroxisome[pər äk′si sōm′]
any of a group of organelles in some cells of mammals, the leaves of plants, etc., containing enzymes that produce and then decompose hydrogen peroxide: thought to be involved in cellular metabolism
Origin of peroxisome; from peroxide + -some
A cell organelle containing enzymes, such as catalase and oxidase, that catalyze the production and breakdown of hydrogen peroxide.
Origin of peroxisomeperoxi(de) + –some3.