kleptosome noun2 •An organelle used to steal and encase organelles from cells of foreign organisms, and hijack them to use the stolen organelles as their own. •A membrane sack organelle found in the cells of the frilly green lettuce sea slug (Elysia crispata) used to contain and operate chloroplasts stolen from algae cells eaten by the slug, allowing the animal to photosynthesize. formskleptosomes
